EGO-X-006 warning

extensions should not use lookupByURL or lookupByUUID for current extension access

Use `this`, `this.getSettings()` or `this.path` instead of `lookupByURL()` or `lookupByUUID()` for the current extension.

`extensionUtils`

• entryMenu.js:24

  Extension.lookupByURL(import.meta.url)

• widget.js:27

  Extension.lookupByURL(import.meta.url)

EGO-L-006 warning

preferences classes should not retain window-scoped objects on instance fields without close-request cleanup

Preferences code stores window-scoped objects on the exported prefs class without `close-request` cleanup.

Destroy all objects

• prefs.js:66

          this._button_box = new Gtk.Box({
              orientation: Gtk.Orientation.HORIZONTAL,
              valign: Gtk.Align.CENTER,
          })

• prefs.js:72

          this._leftButton = new Gtk.ToggleButton({
              label: 'Left',
          })

• prefs.js:75

          this._centerButton = new Gtk.ToggleButton({
              label: 'Center',
              group: this._leftButton,
          })

• prefs.js:79

          this._rightButton = new Gtk.ToggleButton({
              label: 'Right',
              group: this._leftButton,
          })