i18n: localize "Invalid time values" alert in clip-cutter

confirmClipDialog (the handler behind the clip-cutter modals "Add
to queue" button) opens an alert with a hardcoded English message
when the parsed start / end / duration values come back as NaN —
which can happen if the user types non-numeric characters or
otherwise breaks the time-input pattern. German-locale users got
an English alert on a German UI.

Added clips.invalidTime to both locales ("Invalid time values" /
"Ungueltige Zeitangaben") and swapped the inline string for the
locale lookup. All the other alerts in that handler already go
through UI_TEXT.clips.* — this was the one outlier.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/renderer-locale-de.ts

@@ -413,6 +413,7 @@ const UI_TEXT_DE = {
         dialogFormatLabel: 'Dateinamen-Format:',
         dialogConfirm: 'Zur Queue hinzufuegen',
         invalidDuration: 'Ungultig!',
+        invalidTime: 'Ungueltige Zeitangaben',
         endBeforeStart: 'Endzeit muss grosser als Startzeit sein!',
         outOfRange: 'Zeit ausserhalb des VOD-Bereichs!',
         enterUrl: 'Bitte URL eingeben',

src/renderer-locale-en.ts

@@ -413,6 +413,7 @@ const UI_TEXT_EN = {
         dialogFormatLabel: 'Filename format:',
         dialogConfirm: 'Add to queue',
         invalidDuration: 'Invalid!',
+        invalidTime: 'Invalid time values',
         endBeforeStart: 'End time must be greater than start time!',
         outOfRange: 'Time is outside VOD range!',
         enterUrl: 'Please enter a URL',

src/renderer.ts

@@ -1309,7 +1309,7 @@ async function confirmClipDialog(): Promise<void> {
     const filenameTemplate = byId<HTMLInputElement>('clipFilenameTemplate').value.trim();
 
     if (isNaN(startSec) || isNaN(endSec) || isNaN(durationSec)) {
-        alert('Invalid time values');
+        alert(UI_TEXT.clips.invalidTime);
         return;
     }