Create custom Translation component for better i18n handling (#4431)

* Initial plan

* Implement Translation component with Storybook stories

Co-authored-by: gabek <414923+gabek@users.noreply.github.com>

* Add Jest test for Translation component and demonstrate ?lang=de functionality

Co-authored-by: gabek <414923+gabek@users.noreply.github.com>

* Javascript formatting autofixes

* Create centralized type-safe localization system

Co-authored-by: gabek <414923+gabek@users.noreply.github.com>

* Add @testing-library/react to Translation component tests

Co-authored-by: gabek <414923+gabek@users.noreply.github.com>

* Fix code formatting errors with prettier and eslint

Co-authored-by: gabek <414923+gabek@users.noreply.github.com>

* Revert "Fix code formatting errors with prettier and eslint"

Co-authored-by: gabek <414923+gabek@users.noreply.github.com>

* fix(js): eslinter errors

* fix(js): unused code warnings

* fix(js): fix additional warnings

* Update Emoji admin page to use new Translation component

Co-authored-by: gabek <414923+gabek@users.noreply.github.com>

* Organize localization keys by logical sections (Frontend, Admin, Common, Testing)

Co-authored-by: gabek <414923+gabek@users.noreply.github.com>

* Organize localization keys by TypeScript namespaces

Co-authored-by: gabek <414923+gabek@users.noreply.github.com>

* Javascript formatting autofixes

* feat(js): add support for default translated text

* chore: add default lang translations on commit

* fix(js): unused code warnings

* Update OfflineBanner component to use new Translation component

Co-authored-by: gabek <414923+gabek@users.noreply.github.com>

* fix(js): fix localization extraction job

* chore(js): remove ts-node cli

* fix(css): fix css warning

* feat(js): add some additional translation strings via component

* chore: update extracted translations

* test: add tests for Translation component defaultText and fallback behavior

Co-authored-by: gabek <414923+gabek@users.noreply.github.com>

* chore: update extracted translations

* Javascript formatting autofixes

* chore: call out new Translation component

* fix: linter warning

* chore: updated instructions

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: gabek <414923+gabek@users.noreply.github.com>
Co-authored-by: Owncast <owncast@owncast.online>
Co-authored-by: Gabe Kangas <gabek@real-ity.com>

web/components/ui/ComponentError/ComponentError.tsx

@@ -1,5 +1,7 @@
 import { Alert, Button } from 'antd';
 import { FC } from 'react';
+import Translation from '../Translation/Translation';
+import { Localization } from '../../../types/localization';
 
 export type ComponentErrorProps = {
   message?: string;
@@ -35,7 +37,15 @@ const ErrorContent = ({
       <p>You may optionally retry, however functionality might not work as expected.</p>
     )}
     <code>
-      <div>{message && `Error: ${message}`}</div>
+      <div>
+        {message && (
+          <Translation
+            translationKey={Localization.Frontend.componentError}
+            defaultText="Error: {{message}}"
+            vars={{ message }}
+          />
+        )}
+      </div>
       <div>Component: {componentName}</div>
       <div>{details && details}</div>
     </code>