Fix SVG markup in select options, add missing name placeholders

Remove SVG icon function calls from <option> textContent — native
select elements render markup as literal text. Capture template options
now show "name (engine_type)", source options show just the name.

Add i18n placeholders to automation and scene editor name inputs.
Rename HAOS Scenes device from "{server_name} Scenes" to "Scenes".

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/src/wled_controller/static/js/features/pattern-templates.js

@@ -81,7 +81,7 @@ export async function showPatternTemplateEditor(templateId = null, cloneData = n
         sources.forEach(s => {
             const opt = document.createElement('option');
             opt.value = s.id;
-            opt.textContent = `${getPictureSourceIcon(s.stream_type)} ${s.name}`;
+            opt.textContent = s.name;
             bgSelect.appendChild(opt);
         });