リアクションピッカーで重複があっても表示するように

src/client/app/common/views/components/reaction-picker.vue

@@ -3,7 +3,7 @@
 	<div class="backdrop" ref="backdrop" @click="close"></div>
 	<div class="popover" :class="{ isMobile: $root.isMobile }" ref="popover">
 		<div class="buttons" ref="buttons">
-			<button v-for="(reaction, i) in rs" :key="reaction" @click="react(reaction)" :tabindex="i + 1" :title="/^[a-z]+$/.test(reaction) ? $t('@.reactions.' + reaction) : reaction" v-particle><mk-reaction-icon :reaction="reaction"/></button>
+			<button v-for="(reaction, i) in rs" :key="i" @click="react(reaction)" :tabindex="i + 1" :title="/^[a-z]+$/.test(reaction) ? $t('@.reactions.' + reaction) : reaction" v-particle><mk-reaction-icon :reaction="reaction"/></button>
 		</div>
 		<div v-if="enableEmojiReaction" class="text">
 			<input v-model="text" placeholder="Emoji" @keyup.enter="reactText" @keydown.esc="close" @input="tryReactText" v-autocomplete="{ model: 'text', noZwsp: true }" ref="text">