Refactoring of i18n (#3165)

Refactoring of i18n

src/client/app/desktop/views/components/ui.header.search.vue

@@ -1,15 +1,17 @@
 <template>
 <form class="search" @submit.prevent="onSubmit">
 	<i><fa icon="search"/></i>
-	<input v-model="q" type="search" placeholder="%i18n:@placeholder%"/>
+	<input v-model="q" type="search" :placeholder="$t('placeholder')"/>
 	<div class="result"></div>
 </form>
 </template>
 
 <script lang="ts">
 import Vue from 'vue';
+import i18n from '../../../i18n';
 
 export default Vue.extend({
+	i18n: i18n('desktop/views/components/ui.header.search.vue'),
 	data() {
 		return {
 			q: ''