fix(docs): instructions on how to use local immich ui (#27813)

web/src/app.css

@@ -1,7 +1,7 @@
 @import 'tailwindcss';
 @import '@immich/ui/theme/default.css';
 @source "../node_modules/@immich/ui";
-/* @import '/usr/ui/dist/theme/default.css'; */
+/* @import '../../../ui/packages/ui/dist/theme/default.css'; */
 
 @utility immich-form-input {
   @apply bg-gray-100 ring-1 ring-gray-200 transition outline-none focus-within:ring-1 disabled:cursor-not-allowed dark:bg-gray-800 dark:ring-neutral-900 flex w-full items-center rounded-lg disabled:bg-gray-300 disabled:text-dark dark:disabled:bg-gray-900 dark:disabled:text-gray-200 flex-1 py-2.5 text-base pl-4 pr-4;

web/vite.config.ts

@@ -29,7 +29,7 @@ export default defineConfig({
       'xmlhttprequest-ssl': './node_modules/engine.io-client/lib/xmlhttprequest.js',
       // eslint-disable-next-line unicorn/prefer-module
       '@test-data': path.resolve(__dirname, './src/test-data'),
-      // '@immich/ui': path.resolve(__dirname, '../../ui'),
+      // '@immich/ui': path.resolve(__dirname, '../../ui/packages/ui'),
     },
   },
   server: {