js: Split gi imports to be on new lines to prepare for ES modules

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2794>

js/misc/parentalControlsManager.js

@@ -23,7 +23,9 @@
 
 /* exported getDefault */
 
-const { Gio, GObject, Shell } = imports.gi;
+const Gio = imports.gi.Gio;
+const GObject = imports.gi.GObject;
+const Shell = imports.gi.Shell;
 
 // We require libmalcontent ≥ 0.6.0
 const HAVE_MALCONTENT = imports.package.checkSymbol(