chore: bump version to 0.4.0, add Gradle 9.6 wrapper, and finalize builds for NSIS, Docker, Fabric, Forge, and Paper

launcher/src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "SCOPENET Launcher",
-  "version": "0.1.0",
+  "version": "0.4.0",
   "identifier": "net.scopenet.launcher",
   "build": {
     "beforeDevCommand": "npm run dev",