feat: UI polish, DnD fix, navigation, and installer improvements (v1.0.10)

- Fix queue DnD on macOS/Windows: delay ref cleanup in onDragEnd so onDropQueue
  reads correct source/destination before dragend clears them
- Active track highlighting in album tracklist (pulsing accent bg + play icon)
- Marquee scrolling for long titles in Fullscreen Player
- Clickable artist/album in Player Bar and Queue now-playing strip
- Tracklist: format column moved after duration, auto width, kHz/filesize removed
- Settings dropdowns: visible border (base bg + overlay0 border)
- Sidebar: fixed responsive width via clamp(), removed drag-to-resize
- Favorites icon: HandMetal → Star in Random Mix page
- Linux app menu category set to Multimedia (AudioVideo)
- Windows MSI: stable upgradeCode for in-place upgrades
- Bundle: category/description fields at correct config level
- About: Claude Code credit, fixed German MIT licence wording

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

src/i18n.ts

@@ -258,7 +258,8 @@ const enTranslation = {
     aboutLicenseText: 'MIT — free to use, modify, and distribute.',
     aboutRepo: 'Source Code on GitHub',
     aboutVersion: 'Version',
-    aboutBuiltWith: 'Built with Tauri · React · TypeScript · Howler.js'
+    aboutBuiltWith: 'Built with Tauri · React · TypeScript · Howler.js',
+    aboutAiCredit: 'Developed with the support of Claude Code by Anthropic'
   },
   help: {
     title: 'Help',
@@ -612,10 +613,11 @@ const deTranslation = {
     aboutDesc: 'Ein Desktop-Musikplayer für Subsonic-kompatible Server (Navidrome, Gonic u. a.). Streame deine selbst gehostete Musikbibliothek mit einer modernen Oberfläche im Catppuccin-Design.',
     aboutFeatures: 'Multi-Server · Scrobbling · Vollbild-Player · Album-Downloads · Bild-Cache · Catppuccin-Themes',
     aboutLicense: 'Lizenz',
-    aboutLicenseText: 'MIT — kostenlos nutzbar, veränderbar und weitergabbar.',
+    aboutLicenseText: 'MIT — kostenlos nutzbar, veränderbar und weiterzugeben.',
     aboutRepo: 'Quellcode auf GitHub',
     aboutVersion: 'Version',
-    aboutBuiltWith: 'Gebaut mit Tauri · React · TypeScript · Howler.js'
+    aboutBuiltWith: 'Gebaut mit Tauri · React · TypeScript · Howler.js',
+    aboutAiCredit: 'Mit freundlicher Unterstützung von Claude Code by Anthropic'
   },
   help: {
     title: 'Hilfe',