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/appDisplay.js

@@ -69,7 +69,7 @@ function _getFolderName(folder) {
         try {
             keyfile.load_from_data_dirs(path, GLib.KeyFileFlags.NONE);
             name = keyfile.get_locale_string('Desktop Entry', 'Name', null);
-        } catch(e) {
+        } catch (e) {
             return name;
         }
     }
@@ -359,7 +359,7 @@ var AllView = class AllView extends BaseAppView {
         this._appInfoList = Shell.AppSystem.get_default().get_installed().filter(appInfo => {
             try {
                 (appInfo.get_id()); // catch invalid file encodings
-            } catch(e) {
+            } catch (e) {
                 return false;
             }
             return appInfo.should_show();