fix: update file extensions for generated vite configs to use .json instead of .js

[tobiasdiez]

Fixes the issue mentioned in #658 (comment)

[netlify]

👷 Deploy request for nuxt-storybook pending review.

Visit the deploys page to approve it

Name	Link
🔨 Latest commit	dc4d6fc

[dentropy]

This issue does not seem to be reseolved,

I ran the following commands and got an the same error,

pnpm dlx nuxi@latest init Try005
cd Try005
npx nuxi@latest module add storybook
npx storybook-nuxt init
pnpm run storybook

I then get the following logs,

> nuxt-app@ storybook /Users/paulmullins/Downloads/PinaColata/Try005
> storybook dev --port 6006

@storybook/cli v8.0.8

(node:19644) [DEP0040] DeprecationWarning: The `punycode` module is deprecated. Please use a userland alternative instead.
(Use `node --trace-deprecation ...` to show where the warning was created)
WARN The following packages are incompatible with Storybook 8.0.8 as they depend on different major versions of Storybook packages:
WARN - @nuxtjs/storybook@8.1.5
WARN  Repo: https://storybook.nuxtjs.org
WARN 
WARN 
WARN Please consider updating your packages or contacting the maintainers for compatibility details.
WARN For more on Storybook 8 compatibility, see the linked GitHub issue:
WARN https://github.com/storybookjs/storybook/issues/26031
The CJS build of Vite's Node API is deprecated. See https://vitejs.dev/guide/troubleshooting.html#vite-cjs-node-api-deprecated for more details.
info => Starting manager..
info => Starting preview..
(node:19644) ExperimentalWarning: Importing JSON modules is an experimental feature and might change at any time
ℹ Building client...                                                                                                                                      2:34:47 PM
ℹ vite v5.3.5 building for development...                                                                                                                 2:34:47 PM
ℹ ✓ 132 modules transformed.                                                                                                                              2:34:48 PM
ℹ .nuxt/dist/client/manifest.json                   2.46 kB │ gzip:  0.40 kB                                                                              2:34:49 PM
ℹ .nuxt/dist/client/_nuxt/error-dev.DHo5_0bm.css    2.16 kB │ gzip:  0.80 kB                                                                              2:34:49 PM
ℹ .nuxt/dist/client/_nuxt/error-404.ro6_r8Hu.css    3.55 kB │ gzip:  1.10 kB                                                                              2:34:49 PM
ℹ .nuxt/dist/client/_nuxt/entry.qbzXrYjb.css       12.66 kB │ gzip:  2.50 kB                                                                              2:34:49 PM
ℹ .nuxt/dist/client/_nuxt/CNyVo4dG.js               3.62 kB │ gzip:  1.70 kB │ map:     5.95 kB                                                           2:34:49 PM
ℹ .nuxt/dist/client/_nuxt/BuYtj6jZ.js               7.98 kB │ gzip:  3.51 kB │ map:    25.53 kB                                                           2:34:49 PM
ℹ .nuxt/dist/client/_nuxt/DsSzlRSw.js             294.58 kB │ gzip: 92.60 kB │ map: 1,211.52 kB                                                           2:34:49 PM
ℹ ✓ built in 1.91s                                                                                                                                        2:34:49 PM
✔ Client built in 1924ms                                                                                                                                  2:34:49 PM
ℹ Building server...                                                                                                                                      2:34:49 PM
ℹ vite v5.3.5 building SSR bundle for development...                                                                                                      2:34:49 PM
ℹ ✓ 1 modules transformed.                                                                                                                                2:34:49 PM
ℹ .nuxt/dist/server/styles.mjs  0.07 kB                                                                                                                   2:34:49 PM
ℹ .nuxt/dist/server/server.mjs  0.10 kB │ map: 0.36 kB                                                                                                    2:34:49 PM
ℹ ✓ built in 16ms                                                                                                                                         2:34:49 PM
✔ Server built in 24ms                                                                                                                                    2:34:49 PM
✔ Generated public .output/public                                                                                                                   nitro 2:34:49 PM
ℹ Building Nuxt Nitro server (preset: node-server)                                                                                                  nitro 2:34:49 PM
✔ Nuxt Nitro server built                                                                                                                           nitro 2:34:51 PM
  ├─ .output/server/chunks/_/error-500.mjs (4.82 kB) (2.04 kB gzip)
  ├─ .output/server/chunks/_/error-500.mjs.map (330 B) (255 B gzip)
  ├─ .output/server/chunks/build/client.manifest.mjs (3.24 kB) (534 B gzip)
  ├─ .output/server/chunks/build/client.manifest.mjs.map (1.63 kB) (366 B gzip)
  ├─ .output/server/chunks/routes/renderer.mjs (12.2 kB) (4.01 kB gzip)
  ├─ .output/server/chunks/routes/renderer.mjs.map (787 B) (348 B gzip)
  ├─ .output/server/chunks/runtime.mjs (165 kB) (40.2 kB gzip)
  ├─ .output/server/chunks/runtime.mjs.map (4.6 kB) (976 B gzip)
  ├─ .output/server/chunks/virtual/_virtual_spa-template.mjs (94 B) (100 B gzip)
  ├─ .output/server/chunks/virtual/_virtual_spa-template.mjs.map (112 B) (111 B gzip)
  ├─ .output/server/index.mjs (291 B) (192 B gzip)
  └─ .output/server/package.json (595 B) (293 B gzip)
Σ Total size: 1.57 MB (377 kB gzip)
✔ You can preview this build using node .output/server/index.mjs                                                                                    nitro 2:34:51 PM
╭──────────────────────────────────────────────────────────────────────────────────────────╮                                                               2:34:51 PM
│                                                                                          │
│   Storybook 8.0.8 for @storybook-vue/nuxt started                                        │
│   271 ms for manager and 12 s for preview                                                │
│                                                                                          │
│    Local:            http://localhost:6006/                                              │
│    On your network:  http://10.0.0.39:6006/                                              │
│                                                                                          │
│   A new version (8.2.5) is available!                                                    │
│                                                                                          │
│   Upgrade now: npx storybook@latest upgrade                                              │
│                                                                                          │
│   Read full changelog: https://github.com/storybookjs/storybook/blob/main/CHANGELOG.md   │
│                                                                                          │
╰──────────────────────────────────────────────────────────────────────────────────────────╯
✘ [ERROR] The entry point "vue" cannot be marked as external

/Users/paulmullins/Downloads/PinaColata/Try005/node_modules/.pnpm/@storybook+cli@8.0.8_@babel+preset-env@7.25.0_@babel+core@7.24.9__react-dom@18.3.1_react@18.3.1__react@18.3.1/node_modules/@storybook/cli/bin/index.js:23
  throw error;
  ^

Error: Build failed with 1 error:
error: The entry point "vue" cannot be marked as external
    at failureErrorWithLog (/Users/paulmullins/Downloads/PinaColata/Try005/node_modules/.pnpm/esbuild@0.21.5/node_modules/esbuild/lib/main.js:1472:15)
    at /Users/paulmullins/Downloads/PinaColata/Try005/node_modules/.pnpm/esbuild@0.21.5/node_modules/esbuild/lib/main.js:945:25
    at /Users/paulmullins/Downloads/PinaColata/Try005/node_modules/.pnpm/esbuild@0.21.5/node_modules/esbuild/lib/main.js:1353:9
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5) {
  errors: [Getter/Setter],
  warnings: [Getter/Setter]
}

Node.js v21.1.0
 ELIFECYCLE  Command failed with exit code 7.
 ```