refactor(client): align filename to component name

packages/client/src/components/MkReactionIcon.vue

@@ -0,0 +1,13 @@
+<template>
+<MkEmoji :emoji="reaction" :custom-emojis="customEmojis || []" :is-reaction="true" :normal="true" :no-style="noStyle"/>
+</template>
+
+<script lang="ts" setup>
+import { } from 'vue';
+
+const props = defineProps<{
+	reaction: string;
+	customEmojis?: any[]; // TODO
+	noStyle?: boolean;
+}>();
+</script>