enhance(frontend): migrate overridedDeviceKind to preference

packages/frontend/src/preferences/def.ts

@@ -8,6 +8,7 @@ import { hemisphere } from '@@/js/intl-const.js';
 import type { Theme } from '@/theme.js';
 import type { SoundType } from '@/utility/sound.js';
 import type { Plugin } from '@/plugin.js';
+import type { DeviceKind } from '@/utility/device-kind.js';
 import { DEFAULT_DEVICE_KIND } from '@/utility/device-kind.js';
 
 /** サウンド設定 */
@@ -45,6 +46,9 @@ export const PREF_DEF = {
 		}[],
 	},
 
+	overridedDeviceKind: {
+		default: null as DeviceKind | null,
+	},
 	themes: {
 		default: [] as Theme[],
 	},