enhance(frontend): ウィジェットの設定項目の多言語対応 (#17032)

* enhance(frontend): ウィジェットの設定項目の多言語対応

* Update Changelog

* refactor: move options locale key to root for optimizing artifacts for locale inlining

* fix

* fix

* ✌️

---------

Co-authored-by: syuilo <4439005+syuilo@users.noreply.github.com>

packages/frontend/src/widgets/WidgetAichan.vue

@@ -12,6 +12,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 <script lang="ts" setup>
 import { onMounted, onUnmounted, useTemplateRef } from 'vue';
 import { useWidgetPropsManager } from './widget.js';
+import { i18n } from '@/i18n.js';
 import type { WidgetComponentProps, WidgetComponentEmits, WidgetComponentExpose } from './widget.js';
 import type { FormWithDefault, GetFormResultType } from '@/utility/form.js';
 
@@ -20,6 +21,7 @@ const name = 'ai';
 const widgetPropsDef = {
 	transparent: {
 		type: 'boolean',
+		label: i18n.ts._widgetOptions.transparent,
 		default: false,
 	},
 } satisfies FormWithDefault;