enhance(frontend): 絵文字管理画面β（ローカル）のUI・UX改善 (#15349)

* enhance(frontend): 絵文字管理画面β（ローカル）のUI・UX改善

* fix

* 🎨

* 表示件数をメニューから変更するように

* 確認ダイアログ

* fix i18n

* needWideArea: trueならwidgetの開閉ボタンを表示しないように

* fix: 検索ウィンドウは一つしか開けないように

packages/frontend/src/components/global/MkPageHeader.vue

@@ -48,13 +48,16 @@ import { scrollToTop } from '@@/js/scroll.js';
 import { globalEvents } from '@/events.js';
 import { injectReactiveMetadata } from '@/scripts/page-metadata.js';
 import { $i, openAccountMenu as openAccountMenu_ } from '@/account.js';
-import { PageHeaderItem } from '@/types/page-header.js';
+import type { PageHeaderItem } from '@/types/page-header.js';
+import type { PageMetadata } from '@/scripts/page-metadata.js';
 
 const props = withDefaults(defineProps<{
+	overridePageMetadata?: PageMetadata;
 	tabs?: Tab[];
 	tab?: string;
 	actions?: PageHeaderItem[] | null;
 	thin?: boolean;
+	hideTitle?: boolean;
 	displayMyAvatar?: boolean;
 }>(), {
 	tabs: () => ([] as Tab[]),
@@ -64,9 +67,10 @@ const emit = defineEmits<{
 	(ev: 'update:tab', key: string);
 }>();
 
-const pageMetadata = injectReactiveMetadata();
+const injectedPageMetadata = injectReactiveMetadata();
+const pageMetadata = computed(() => props.overridePageMetadata ?? injectedPageMetadata.value);
 
-const hideTitle = inject('shouldOmitHeaderTitle', false);
+const hideTitle = computed(() => inject('shouldOmitHeaderTitle', false) || props.hideTitle);
 const thin_ = props.thin || inject('shouldHeaderThin', false);
 
 const el = shallowRef<HTMLElement | undefined>(undefined);
@@ -75,7 +79,7 @@ const narrow = ref(false);
 const hasTabs = computed(() => props.tabs.length > 0);
 const hasActions = computed(() => props.actions && props.actions.length > 0);
 const show = computed(() => {
-	return !hideTitle || hasTabs.value || hasActions.value;
+	return !hideTitle.value || hasTabs.value || hasActions.value;
 });
 
 const preventDrag = (ev: TouchEvent) => {