electron: add basic context menu for inspect element (#20723)

packages/desktop-electron/package.json

@@ -31,6 +31,7 @@
     "@solidjs/meta": "catalog:",
     "@solidjs/router": "0.15.4",
     "effect": "catalog:",
+    "electron-context-menu": "4.1.2",
     "electron-log": "^5",
     "electron-store": "^10",
     "electron-updater": "^6",

packages/desktop-electron/src/main/index.ts

@@ -8,6 +8,9 @@ import type { Event } from "electron"
 import { app, BrowserWindow, dialog } from "electron"
 import pkg from "electron-updater"
 
+import contextMenu from "electron-context-menu"
+contextMenu({ showSaveImageAs: true, showLookUpSelection: false, showSearchWithGoogle: false })
+
 const APP_NAMES: Record<string, string> = {
   dev: "OpenCode Dev",
   beta: "OpenCode Beta",