fix #10554 チャンネルの検索用ページとAPIの追加 (#10555)

* add channel search

* move  channel search to channel list page

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Co-authored-by: tamaina <tamaina@hotmail.co.jp>
Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>
Co-authored-by: atsuchan <83960488+atsu1125@users.noreply.github.com>
Co-authored-by: Masaya Suzuki <15100604+massongit@users.noreply.github.com>
Co-authored-by: Kagami Sascha Rosylight <saschanaz@outlook.com>
Co-authored-by: taiy <53635909+taiyme@users.noreply.github.com>
Co-authored-by: xianon <xianon@hotmail.co.jp>
Co-authored-by: kabo2468 <28654659+kabo2468@users.noreply.github.com>
Co-authored-by: YS <47836716+yszkst@users.noreply.github.com>
Co-authored-by: Khsmty <me@khsmty.com>
Co-authored-by: Soni L <EnderMoneyMod@gmail.com>
Co-authored-by: mei23 <m@m544.net>
Co-authored-by: daima3629 <52790780+daima3629@users.noreply.github.com>
Co-authored-by: Windymelt <1113940+windymelt@users.noreply.github.com>

packages/frontend/src/components/MkChannelList.vue

@@ -0,0 +1,31 @@
+<template>
+<MkPagination :pagination="pagination">
+	<template #empty>
+		<div class="_fullinfo">
+			<img src="https://xn--931a.moe/assets/info.jpg" class="_ghost"/>
+			<div>{{ i18n.ts.notFound }}</div>
+		</div>
+	</template>
+
+	<template #default="{ items }">
+		<MkChannelPreview v-for="item in items" :key="item.id" class="_margin" :channel="extractor(item)"/>
+	</template>
+</MkPagination>
+</template>
+
+<script lang="ts" setup>
+import MkChannelPreview from '@/components/MkChannelPreview.vue';
+import MkPagination, { Paging } from '@/components/MkPagination.vue';
+import { i18n } from '@/i18n';
+
+const props = withDefaults(defineProps<{
+	pagination: Paging;
+	noGap?: boolean;
+	extractor?: (item: any) => any;
+}>(), {
+	extractor: (item) => item,
+});
+</script>
+
+<style lang="scss" scoped>
+</style>