[visual-studio-code-bin] URI handler support

See https://github.com/Microsoft/vscode/pull/56727

See https://github.com/Microsoft/vscode/pull/63750

visual-studio-code-url-handler.desktop

@@ -0,0 +1,12 @@
+[Desktop Entry]
+Name=Visual Studio Code - URL Handler
+Comment=Code Editing. Redefined.
+GenericName=Text Editor
+Exec=/opt/visual-studio-code/code --open-url %U
+Icon=visual-studio-code
+Type=Application
+NoDisplay=true
+StartupNotify=true
+Categories=Development;WebDevelopment;IDE;Utility;TextEditor;
+MimeType=x-scheme-handler/vscode
+Keywords=vscode;