fix: Tauri 2.0 plugin config and icon bit depth

- Remove deprecated empty plugin configs (store, dialog, etc.)
- Remove fs plugin scope (now handled by capabilities)
- Convert icons from 16-bit to 8-bit RGBA for Tauri compatibility

apps/desktop-wallet/src-tauri/tauri.conf.json

@@ -34,17 +34,9 @@
     }
   },
   "plugins": {
-    "fs": {
-      "scope": {
-        "allow": ["$APPDATA/*", "$HOME/.synor/*"]
-      }
-    },
-    "store": {},
     "shell": {
       "open": true
     },
-    "dialog": {},
-    "clipboard-manager": {},
     "updater": {
       "endpoints": [
         "https://releases.synor.io/wallet/{{target}}/{{arch}}/{{current_version}}"
@@ -53,8 +45,7 @@
       "windows": {
         "installMode": "passive"
       }
-    },
-    "notification": {}
+    }
   },
   "bundle": {
     "active": true,