feat: add svelte support

Author: colinaaa

package.json

@@ -40,11 +40,13 @@
     "@biomejs/biome": "^1.9.4",
     "@playwright/test": "^1.58.2",
     "@rsbuild/core": "2.0.0-beta.4",
+    "@rsbuild/plugin-svelte": "^1.1.1",
     "@rsdoctor/rspack-plugin": "^1.5.2",
     "@rslib/core": "^0.19.5",
     "@types/node": "^22.19.11",
     "postcss": "^8.5.6",
     "simple-git-hooks": "^2.13.1",
+    "svelte": "^5.55.0",
     "tailwindcss": "^4.2.1",
     "typescript": "^5.9.3"
   },