⬆️(frontend) replace ui-kit by ui-components

A major release was made on the ui-kit side,
ui-kit is replaced by ui-components, which is a new
package that contains the same components as ui-kit
but with some improvements.
To build the tokens, a new dev dependency is necessary,
which is @gouvfr-lasuite/ui-tokens.
These replacements bring better separation of concerns
and a better architecture for the future.
We need to adapt our codebase to use the new package
and the new dev dependency.

src/frontend/package.json

@@ -32,7 +32,6 @@
     "server:test": "yarn COLLABORATION_SERVER run test"
   },
   "resolutions": {
-    "@gouvfr-lasuite/cunningham-react": "4.4.0",
     "@tiptap/extensions": "3.29.2",
     "@types/node": "24.13.3",
     "@types/react": "19.2.17",