Fix actor deprecation warnings on login/unlock screens
LoginDialog was turned into an actor subclass a long time ago, but not all code was adjusted:
Sep 20 13:04:40 silbersee gnome-shell[1022]: Usage of object.actor is deprecated for LoginDialog
get@resource:///org/gnome/shell/ui/environment.js:235:29
_hideLockScreenComplete@resource:///org/gnome/shell/ui/screenShield.js:916:13
onComplete@resource:///org/gnome/shell/ui/screenShield.js:945:35
_makeEaseCallback/<@resource:///org/gnome/shell/ui/environment.js:75:13
_easeActor/<@resource:///org/gnome/shell/ui/environment.js:126:60
Sep 20 13:04:40 silbersee gnome-shell[1022]: Usage of object.actor is deprecated for LoginDialog
get@resource:///org/gnome/shell/ui/environment.js:235:29
_hideLockScreenComplete@resource:///org/gnome/shell/ui/screenShield.js:917:13
onComplete@resource:///org/gnome/shell/ui/screenShield.js:945:35
_makeEaseCallback/<@resource:///org/gnome/shell/ui/environment.js:75:13
_easeActor/<@resource:///org/gnome/shell/ui/environment.js:126:60
[...]
Sep 20 13:04:48 silbersee gnome-shell[1022]: Usage of object.actor is deprecated for LoginDialog
get@resource:///org/gnome/shell/ui/environment.js:235:29
_startSession@resource:///org/gnome/shell/gdm/loginDialog.js:947:9
_onSessionOpened/<@resource:///org/gnome/shell/gdm/loginDialog.js:959:39
finish/signalId<@resource:///org/gnome/shell/gdm/authPrompt.js:499:13
_emit@resource:///org/gnome/gjs/modules/signals.js:135:27
finishMessageQueue@resource:///org/gnome/shell/gdm/util.js:245:9
_queueMessageTimeout@resource:///org/gnome/shell/gdm/util.js:250:13
_queueMessageTimeout/this._messageQueueTimeoutId<@resource:///org/gnome/shell/gdm/util.js:265:60
Fix those warnings.