feat: Waveform seekbar, MilkDrop visualizer, EQ bars, in-app browser, and UX improvements (v1.3.0)

- PlayerBar redesigned: canvas waveform seekbar (500 bars, blue→mauve gradient + glow) replaces thin slider; new flex layout; queue toggle moved to content header (consistent with sidebar pattern)
- MilkDrop visualizer in Ambient Stage via Butterchurn; hidden audio analysis, preset shuffle, smooth blend transitions
- Tracklist: animated EQ bars for playing track, play icon when paused, align-items: center fix
- Artist pages: Last.fm + Wikipedia open in native Tauri WebviewWindow (in-app browser)
- Hero/Discover deduplication: single fetch of 20 random albums split between sections
- Update checker: runs every 10 minutes during runtime; version shown without v-prefix
- Settings version: now read from package.json instead of hardcoded
- Help page: new Random Mix section, updated Playback + Library sections, improved accordion styling
- Bump version to 1.3.0

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

package-lock.json

@@ -1,12 +1,12 @@
 {
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+  "version": "1.3.0",
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-      "version": "1.0.12",
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@@ -16,6 +16,8 @@
         "@tauri-apps/plugin-shell": "^2",
         "@tauri-apps/plugin-store": "^2",
         "axios": "^1.7.7",
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         "i18next": "^25.8.16",
         "lucide-react": "^0.462.0",
         "md5": "^2.3.0",
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+    "node_modules/butterchurn": {
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@@ -1764,6 +1797,14 @@
       "dev": true,
       "license": "MIT"
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+      "hasInstallScript": true,
+      "license": "MIT"
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@@ -2179,6 +2226,12 @@
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@@ -2433,6 +2486,12 @@
         "react-dom": ">=16.8"
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