release: bump to v1.34.4

Song ratings in context menu + player bar, entity ratings (PR #130),
5 new seekbar styles, custom Linux title bar, album multi-select,
mix rating filter, top-rated stats, compilation filter, scroll reset.

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

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "Psysonic",
-  "version": "1.34.3",
+  "version": "1.34.4",
   "identifier": "dev.psysonic.player",
   "build": {
     "beforeDevCommand": "npm run dev",