refactor: move window picker out of the preferences directory

I prefer having it there since it's only used inside of preferences, but
I was advised to move it to a different place in EGO review, since it's
run inside of the extension process.

src/extension.ts

@@ -17,14 +17,14 @@ import {
     shouldEnableEffect,
     windowScaleFactor,
 } from './manager/utils.js';
-import {WindowPicker} from './preferences/window_picker/service.js';
 import {
     disableBackgroundMenuItem,
     enableBackgroundMenuItem,
 } from './utils/background_menu.js';
 import {OVERVIEW_SHADOW_ACTOR, SHADOW_PADDING} from './utils/constants.js';
 import {logDebug} from './utils/log.js';
 import {getPref, initPrefs, prefs, uninitPrefs} from './utils/settings.js';
+import {WindowPicker} from './window_picker/service.js';
 
 // types, which will be removed in output
 import type Gio from 'gi://Gio';

src/preferences/widgets/app_row.ts

@@ -3,7 +3,7 @@ import GObject from 'gi://GObject';
 import Gtk from 'gi://Gtk';
 
 import {gettext as _} from 'resource:///org/gnome/Shell/Extensions/js/extensions/prefs.js';
-import {onPicked, pick} from '../window_picker/client.js';
+import {onPicked, pick} from '../../window_picker/client.js';
 
 export class AppRowClass extends Adw.ExpanderRow {
     private callbacks?: AppRowCallbacks;

src/preferences/window_picker/service.ts → src/window_picker/service.ts

@@ -10,8 +10,8 @@ import Meta from 'gi://Meta';
 import {Inspector} from 'resource:///org/gnome/shell/ui/lookingGlass.js';
 import * as Main from 'resource:///org/gnome/shell/ui/main.js';
 
-import {readRelativeFile} from '../../utils/file.js';
-import {logDebug} from '../../utils/log.js';
+import {readRelativeFile} from '../utils/file.js';
+import {logDebug} from '../utils/log.js';
 
 /**
  * This class provides the implementation of the DBus interface for the window