fix: Use a proper desktop name in package.json (#231472)

Fixes #154693

Initally, this part is required due to how Electron handles the prorotol
registeration as in #56727 (comment) ( I also explained in #154693 (comment) )

However since
986b553
that part is no longer used for protocol registeration on Linux, and
since Electron 18, Electron uses the desktop file name to set the
`app_id` in Wayland, and it was given the wrong one. This change fixes the
problem where running VS Code on Wayland would have the `app_id` of
`code-url-handler` which is unreasonable.

build/gulpfile.vscode.js

@@ -276,9 +276,8 @@ function packageTask(platform, arch, sourceFolderName, destinationFolderName, op
 		const name = product.nameShort;
 		const packageJsonUpdates = { name, version };
 
-		// for linux url handling
 		if (platform === 'linux') {
-			packageJsonUpdates.desktopName = `${product.applicationName}-url-handler.desktop`;
+			packageJsonUpdates.desktopName = `${product.applicationName}.desktop`;
 		}
 
 		let packageJsonContents;