feat: add 'Close launcher on game start' option and improve app termination behavior (#93)

* update main branch to release/v2.0.2b (#86)

* add more linux pkgs, create auto-release and pre-release feature for Github Actions

* removed package-lock from gitignore

* update .gitignore for local build

* add package-lock.json to maintain stability development

* update version to 2.0.2b also add deps for rpm and arch

* update 2.0.2b: add arm64 support, product and executable name, maintainers; remove snap;

* update 2.0.2b: add latest.yml for win & linux, arm64 support; remove snap

* fix release build naming

* Prepare release v2.0.2b

* feat: add 'Close launcher on game start' option and improve app termination behavior

- Added 'Close launcher on game start' setting in GUI and backend.
- Implemented automatic app quit after game launch if setting is enabled.
- Added Cmd+Q (Mac) and Ctrl+Q/Alt+F4 (Win/Linux) shortcuts to quit the app.
- Updated 'window-close' handler to fully quit the app instead of just closing the window.
- Added i18n support for the new setting in English, Spanish, and Portuguese.

---------

Co-authored-by: Fazri Gading <fazrigading@gmail.com>
Co-authored-by: Arnav Singh <hi.arnavsingh3@gmail.com>

preload.js

@@ -21,6 +21,8 @@ contextBridge.exposeInMainWorld('electronAPI', {
   loadDiscordRPC: () => ipcRenderer.invoke('load-discord-rpc'),
   saveLanguage: (language) => ipcRenderer.invoke('save-language', language),
   loadLanguage: () => ipcRenderer.invoke('load-language'),
+  saveCloseLauncher: (enabled) => ipcRenderer.invoke('save-close-launcher', enabled),
+  loadCloseLauncher: () => ipcRenderer.invoke('load-close-launcher'),
   selectInstallPath: () => ipcRenderer.invoke('select-install-path'),
   browseJavaPath: () => ipcRenderer.invoke('browse-java-path'),
   isGameInstalled: () => ipcRenderer.invoke('is-game-installed'),