docs: added support for tests in www workspace (#14415)

* tests for components (WIP)

* finished adding tests to components

* added tests for providers

* add test command to doc tests

* fix imports

* exclude test files

* remove import

* add vitest as dev dependency

* fix build error

* ignore test files from eslint

* fix test from docs-ui

www/packages/docs-ui/package.json

@@ -31,7 +31,8 @@
     "build:js:esm": "tsc --project tsconfig.esm.json && tsc-alias -p tsconfig.esm.json",
     "clean": "rimraf dist",
     "dev": "yarn build:js:cjs && yarn build:js:esm",
-    "lint": "eslint src --fix"
+    "lint": "eslint src --fix",
+    "test": "vitest"
   },
   "devDependencies": {
     "@types/react": "19.2.3",
@@ -47,7 +48,9 @@
     "tsc-alias": "^1.8.7",
     "tsup": "^5.10.1",
     "types": "*",
-    "typescript": "^5.1.6"
+    "typescript": "^5.1.6",
+    "vite-tsconfig-paths": "^5.1.4",
+    "vitest": "^2.1.8"
   },
   "peerDependencies": {
     "@types/react": "*",