Bump rollup-plugin-scss from 3.0.0 to 4.0.0 in /web/app

Bumps [rollup-plugin-scss](https://github.com/thgh/rollup-plugin-scss) from 3.0.0 to 4.0.0.
- [Release notes](https://github.com/thgh/rollup-plugin-scss/releases)
- [Changelog](https://github.com/thgh/rollup-plugin-scss/blob/v4/CHANGELOG.md)
- [Commits](https://github.com/thgh/rollup-plugin-scss/commits)

---
updated-dependencies:
- dependency-name: rollup-plugin-scss
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

web/app/package.json

@@ -24,7 +24,7 @@
     "rollup": "^3.17.2",
     "rollup-plugin-copy": "^3.4.0",
     "rollup-plugin-css-only": "^4.3.0",
-    "rollup-plugin-scss": "^3.0.0",
+    "rollup-plugin-scss": "^4.0.0",
     "rollup-plugin-svelte": "^7.1.3",
     "rollup-plugin-terser": "^7.0.0",
     "sass": "^1.58.3",

web/app/yarn.lock

@@ -2133,10 +2133,10 @@ rollup-plugin-css-only@^4.3.0:
   dependencies:
     "@rollup/pluginutils" "5"
 
-rollup-plugin-scss@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-scss/-/rollup-plugin-scss-3.0.0.tgz#35ad0adc614217e0278e702d8a674820faa0929e"
-  integrity sha512-UldNaNHEon2a5IusHvj/Nnwc7q13YDvbFxz5pfNbHBNStxGoUNyM+0XwAA/UafJ1u8XRPGdBMrhWFthrrGZdWQ==
+rollup-plugin-scss@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-scss/-/rollup-plugin-scss-4.0.0.tgz#ae36d737fada444dc24c75d107abc7a893a5b7d6"
+  integrity sha512-wxasNXDYC2m+fDxCMgK00WebVWYmeFvShyNABmjvSJZ6D1/SepwqFeaMFMQromveI79gfvb64yJjiZZxSZxEIA==
   dependencies:
     rollup-pluginutils "^2.3.3"