Add an indicator to make the undo renote button look more interactable (#6366)

* Add an indicator to make the undo renote button look more interactable

* Use faEllipsisH :art

Co-authored-by: DW <chocological00@gitlab.com>
Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

src/client/components/note.vue

@@ -21,7 +21,10 @@
 			</router-link>
 		</i18n>
 		<div class="info">
-			<button class="_button time" @click="showRenoteMenu()" ref="renoteTime"><mk-time :time="note.createdAt"/></button>
+			<button class="_button time" @click="showRenoteMenu()" ref="renoteTime">
+				<fa class="dropdownIcon" :icon="faEllipsisH"/>
+				<mk-time :time="note.createdAt"/>
+			</button>
 			<span class="visibility" v-if="note.visibility !== 'public'">
 				<fa v-if="note.visibility === 'home'" :icon="faHome"/>
 				<fa v-if="note.visibility === 'followers'" :icon="faUnlock"/>
@@ -85,7 +88,7 @@
 
 <script lang="ts">
 import Vue from 'vue';
-import { faBolt, faTimes, faBullhorn, faStar, faLink, faExternalLinkSquareAlt, faPlus, faMinus, faRetweet, faReply, faReplyAll, faEllipsisH, faHome, faUnlock, faEnvelope, faThumbtack, faBan, faQuoteRight, faInfoCircle } from '@fortawesome/free-solid-svg-icons';
+import { faBolt, faTimes, faBullhorn, faStar, faLink, faExternalLinkSquareAlt, faPlus, faMinus, faRetweet, faReply, faReplyAll, faEllipsisH, faHome, faUnlock, faEnvelope, faThumbtack, faBan, faQuoteRight, faInfoCircle, faEllipsisH } from '@fortawesome/free-solid-svg-icons';
 import { faCopy, faTrashAlt, faEdit, faEye, faEyeSlash } from '@fortawesome/free-regular-svg-icons';
 import { parse } from '../../mfm/parse';
 import { sum, unique } from '../../prelude/array';
@@ -143,7 +146,7 @@ export default Vue.extend({
 			showContent: false,
 			hideThisNote: false,
 			noteBody: this.$refs.noteBody,
-			faEdit, faBolt, faTimes, faBullhorn, faPlus, faMinus, faRetweet, faReply, faReplyAll, faEllipsisH, faHome, faUnlock, faEnvelope, faThumbtack, faBan
+			faEdit, faBolt, faTimes, faBullhorn, faPlus, faMinus, faRetweet, faReply, faReplyAll, faEllipsisH, faHome, faUnlock, faEnvelope, faThumbtack, faBan, faEllipsisH
 		};
 	},
 
@@ -857,6 +860,10 @@ export default Vue.extend({
 			> .time {
 				flex-shrink: 0;
 				color: inherit;
+
+				> .dropdownIcon {
+					margin-right: 4px;
+				}
 			}
 
 			> .visibility {