Media editor polish

ts/util/theme.ts

@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: AGPL-3.0-only
 
 import { missingCaseError } from './missingCaseError';
+import { ThemeType } from '../types/Util';
 
 export enum Theme {
   Light,
@@ -18,3 +19,14 @@ export function themeClassName(theme: Theme): string {
       throw missingCaseError(theme);
   }
 }
+
+export function themeClassName2(theme: ThemeType): string {
+  switch (theme) {
+    case ThemeType.light:
+      return 'light-theme';
+    case ThemeType.dark:
+      return 'dark-theme';
+    default:
+      throw missingCaseError(theme);
+  }
+}