chore(frontend): CSSのwarning解消、i18n (MisskeyIO#640)

packages/frontend/src/components/MkAbuseReport.vue

@@ -28,7 +28,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 			{{ i18n.ts.moderator }}:
 			<MkAcct :user="report.assignee"/>
 		</div>
-		<div v-if="report.category">カテゴリ: {{ i18n.ts[`_abuseReportCategory.${report.category}`] }}</div>
+		<div v-if="report.category">{{ i18n.ts.category }}: {{ i18n.ts[`_abuseReportCategory.${report.category}`] }}</div>
 		<div><MkTime :time="report.createdAt"/></div>
 		<div class="action">
 			<MkSwitch v-model="forward" :disabled="report.targetUser.host == null || report.resolved">

packages/frontend/src/pages/about.vue

@@ -247,7 +247,7 @@ definePageMetadata(() => ({
 	background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
 }
 
-> .iconCredit {
+.iconCredit {
 	margin: 0 auto;
 	width: max-content;
 	position: relative;