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

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

package.json

@@ -1,6 +1,6 @@
 {
   "name": "psysonic",
-  "version": "1.18.0",
+  "version": "1.19.0",
   "private": true,
   "scripts": {
     "dev": "vite",
@@ -15,7 +15,6 @@
     "@tauri-apps/plugin-dialog": "^2.6.0",
     "@tauri-apps/plugin-fs": "^2.4.5",
     "@tauri-apps/plugin-global-shortcut": "^2",
-    "@tauri-apps/plugin-notification": "^2",
     "@tauri-apps/plugin-shell": "^2",
     "@tauri-apps/plugin-store": "^2",
     "@tauri-apps/plugin-window-state": "^2.4.1",