Bump bootstrap from 3.3.7 to 3.4.1 in /0.24.1

Bumps [bootstrap](https://github.com/twbs/bootstrap) from 3.3.7 to 3.4.1.
- [Release notes](https://github.com/twbs/bootstrap/releases)
- [Commits](twbs/bootstrap@v3.3.7...v3.4.1)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

0.24.1/package.json

@@ -9,7 +9,7 @@
   },
   "license": "MIT",
   "devDependencies": {
-    "bootstrap": "3.3.x",
+    "bootstrap": "3.4.x",
     "gitbook-cli": "2.3.x",
     "handlebars": "4.x.x",
     "highlight.js": "9.x.x",