refactor(web): update vitest configuration to merge with Vite config and add alias for utility path

- Changed import of 'path' to 'node:path' for better compatibility.
- Merged existing Vite configuration with Vitest configuration.
- Added alias for '@cfdm/ui/lib/utils' to streamline utility imports.

Co-authored-by: Cursor <[email protected]>

apps/web/vitest.config.ts

@@ -1,10 +1,17 @@
-import { defineConfig } from 'vitest/config'
+import path from 'node:path'
-import path from 'path'
+import { defineConfig, mergeConfig } from 'vitest/config'
+import viteConfig from './vite.config'
 
-export default defineConfig({
+export default mergeConfig(
-  resolve: {
+  viteConfig,
-    alias: {
+  defineConfig({
-      '@': path.resolve(__dirname, './src'),
+    resolve: {
+      alias: {
+        '@cfdm/ui/lib/utils': path.resolve(
+          __dirname,
+          '../../packages/ui/src/lib/utils.ts',
+        ),
+      },
     },
-  },
+  }),
-})
+)