refactor: GNOME 46 port

It looks like .add() and .add_actor() were removed in GNOME 46.
Replacing these with .add_child() seems to work.  With these changes I'm
able to successfully install and use the extension on GNOME 46 RC.

oae/gnome-shell-pano#259
https://gitlab.gnome.org/GNOME/gnome-shell/-/commit/350cd296fa90adb3d18f9b375b5531077cff825a

metadata.json

@@ -5,6 +5,7 @@
     "uuid": "[email protected]",
     "settings-schema": "org.gnome.shell.extensions.pop-shell",
     "shell-version": [
-        "45"
+        "45",
+        "46"
     ]
 }

src/context.ts

@@ -5,7 +5,7 @@ import * as PopupMenu from 'resource:///org/gnome/shell/ui/popupMenu.js';
 
 export function addMenu(widget: any, request: (menu: St.Widget) => void): St.Widget {
     const menu = new PopupMenu.PopupMenu(widget, 0.0, St.Side.TOP, 0);
-    Main.uiGroup.add_actor(menu.actor);
+    Main.uiGroup.add_child(menu.actor);
     menu.actor.hide();
     menu.actor.add_style_class_name('panel-menu');
 

src/panel_settings.ts

@@ -52,7 +52,7 @@ export class Indicator {
             this.button.icon = button_icon_auto_off;
         }
 
-        this.button.add_actor(this.button.icon);
+        this.button.add_child(this.button.icon);
 
         let bm = this.button.menu;
 
@@ -135,8 +135,8 @@ function floating_window_exceptions(ext: Ext, menu: any): any {
     let icon = new St.Icon({ icon_name: 'go-next-symbolic', icon_size: 16 });
 
     let widget = new St.BoxLayout({ vertical: false });
-    widget.add(label);
-    widget.add(icon);
+    widget.add_child(label);
+    widget.add_child(icon);
     widget.set_x_expand(true);
 
     let base = new PopupBaseMenuItem();

src/search.ts

@@ -211,10 +211,10 @@ export class Search {
         });
 
         const scroller = new St.ScrollView();
-        scroller.add_actor(this.list);
+        scroller.add_child(this.list);
 
-        this.dialog.contentLayout.add(this.entry);
-        this.dialog.contentLayout.add(scroller);
+        this.dialog.contentLayout.add_child(this.entry);
+        this.dialog.contentLayout.add_child(scroller);
 
         this.scroller = scroller;
 
@@ -453,7 +453,7 @@ export class SearchOption {
         layout.add_child(this.shortcut);
 
         this.widget = new St.Button({ style_class: 'pop-shell-search-element' });
-        (this.widget as any).add_actor(layout);
+        (this.widget as any).add_child(layout);
     }
 }
 

src/stack.ts

@@ -98,9 +98,9 @@ const TabButton = GObject.registerClass(
             close_button.set_x_align(Clutter.ActorAlign.END);
             close_button.set_y_align(Clutter.ActorAlign.CENTER);
 
-            container.add_actor(icon);
-            container.add_actor(label);
-            container.add_actor(close_button);
+            container.add_child(icon);
+            container.add_child(label);
+            container.add_child(close_button);
 
             super._init({
                 child: container,