Fix theme name requirement regression with efficient lookup by name (#35007)

Co-authored-by: Claire <claire.github-309c@sitedethib.com>

vite.config.mts

@@ -16,6 +16,7 @@ import postcssPresetEnv from 'postcss-preset-env';
 import { MastodonServiceWorkerLocales } from './config/vite/plugin-sw-locales';
 import { MastodonEmojiCompressed } from './config/vite/plugin-emoji-compressed';
 import { MastodonThemes } from './config/vite/plugin-mastodon-themes';
+import { MastodonNameLookup } from './config/vite/plugin-name-lookup';
 
 const jsRoot = path.resolve(__dirname, 'app/javascript');
 
@@ -125,6 +126,7 @@ export const config: UserConfigFnPromise = async ({ mode, command }) => {
       // Old library types need to be converted
       optimizeLodashImports() as PluginOption,
       !!process.env.ANALYZE_BUNDLE_SIZE && (visualizer() as PluginOption),
+      MastodonNameLookup(),
     ],
   } satisfies UserConfig;
 };