feat: v1.19.0 — NSIS Installer, Tray Removed, Storage Warning, Theme Polish

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": "1.18.0",
+  "version": "1.19.0",
   "identifier": "dev.psysonic.player",
   "build": {
     "beforeDevCommand": "npm run dev",
@@ -60,8 +60,8 @@
       "minimumSystemVersion": "10.15"
     },
     "windows": {
-      "wix": {
-        "upgradeCode": "e3b4c2a1-7f6d-4e8b-9c5a-2d1f0e3b8a7c"
+      "nsis": {
+        "installMode": "currentUser"
       }
     }
   }