Update swiper peer dependency to ^12.1.2 to fix CVE-2026-27212 (#9356)

* Initial plan

* Update swiper peer dependency to ^12.1.2 and fix SCSS imports for Swiper 12 compatibility

Co-authored-by: pranav-gupta-msft <88364044+pranav-gupta-msft@users.noreply.github.com>

* Remove .css extension from swiper imports and upgrade sass to 1.98.0 for CSS nesting support

Co-authored-by: vinnarayana-msft <241959415+vinnarayana-msft@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: pranav-gupta-msft <88364044+pranav-gupta-msft@users.noreply.github.com>
Co-authored-by: vinnarayana-msft <241959415+vinnarayana-msft@users.noreply.github.com>

Author: 3 people

source/nodejs/adaptivecards/package.json

@@ -47,7 +47,7 @@
 		"typedoc-plugin-markdown": "^3.11.2"
 	},
 	"peerDependencies": {
-		"swiper": "^11.0.7"
+		"swiper": "^12.1.2"
 	},
 	"jest": {
 		"verbose": true,

source/nodejs/adaptivecards/src/scss/adaptivecards-carousel.scss

@@ -1,9 +1,9 @@
 // Copyright (C) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 @import 'adaptivecards-vars';
-@import 'swiper/swiper.scss';
-@import 'swiper/modules/pagination.scss';
-@import 'swiper/modules/navigation.scss';
+@import 'swiper/swiper';
+@import 'swiper/modules/pagination';
+@import 'swiper/modules/navigation';
 
 .swiper-pagination-bullet {
     text-align: center;