Translate the video toggle and guard loops without one

The pause and play labels were missing from the kant_t dictionary, so
English and Turkish pages showed them in German. video.js now skips a
data-video-loop without its toggle instead of throwing and leaving every
later video still, and the design panel puts size and spacing first for
the video block.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

public/assets/design-panel.js

@@ -513,7 +513,7 @@ export function createDesignPanel({ schema, onChange, onSavePreset, getBlock, ge
     });
     panel.append(searchLabel, search, found);
 
-    const priority = ['image', 'gallery', 'logos'].includes(block.type) ? ['image', 'size', 'spacing'] : isContainer(block) ? ['layout', 'size', 'spacing', 'background'] : ['spacer', 'divider', 'embed'].includes(block.type) ? ['size', 'spacing'] : ['text', 'size', 'spacing'];
+    const priority = ['image', 'gallery', 'logos'].includes(block.type) ? ['image', 'size', 'spacing'] : isContainer(block) ? ['layout', 'size', 'spacing', 'background'] : ['spacer', 'divider', 'embed', 'video'].includes(block.type) ? ['size', 'spacing'] : ['text', 'size', 'spacing'];
     const orderedGroups = [...new Set([...priority, ...Object.keys(GROUPS)])];
     for (const group of orderedGroups) {
       const groupLabel = GROUPS[group];

public/assets/video.js

@@ -12,6 +12,8 @@ const saving = navigator.connection?.saveData === true;
 
 for (const video of document.querySelectorAll('[data-video-loop]')) {
   const toggle = video.parentElement.querySelector(':scope > .video-toggle');
+  // Ein data-video-loop aus „Eigenes HTML“ hat keinen Knopf; ohne ihn bleibt es beim Standbild.
+  if (!toggle) continue;
   let wanted = !reduced.matches && !saving;
   let visible = false;
   const paint = () => {