style: Use space after catch

We are currently inconsistent with whether or not to put a space
after catch clauses. While the predominant style is to omit it,
that's inconsistent with the style we use for any other statement.
There's not really a good reason to stick with it, so switch to
the style gjs/eslint default to.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/607

js/ui/status/thunderbolt.js

@@ -67,7 +67,7 @@ var Client = class {
     _onProxyReady(o, res) {
         try {
 	    this._proxy = Gio.DBusProxy.new_finish(res);
-        } catch(e) {
+        } catch (e) {
 	    log('error creating bolt proxy: %s'.format(e.message));
             return;
         }