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/endSessionDialog.js

@@ -155,7 +155,7 @@ function findAppFromInhibitor(inhibitor) {
     let desktopFile;
     try {
         [desktopFile] = inhibitor.GetAppIdSync();
-    } catch(e) {
+    } catch (e) {
         // XXX -- sometimes JIT inhibitors generated by gnome-session
         // get removed too soon. Don't fail in this case.
         log('gnome-session gave us a dead inhibitor: %s'.format(inhibitor.get_object_path()));
@@ -335,7 +335,7 @@ class EndSessionDialog extends ModalDialog.ModalDialog {
 
         try {
             this._updatesPermission = Polkit.Permission.new_sync("org.freedesktop.packagekit.trigger-offline-update", null, null);
-        } catch(e) {
+        } catch (e) {
             log('No permission to trigger offline updates: %s'.format(e.toString()));
         }