Expose content language in HTML

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

js/src/components/Comment/Comment.vue

@@ -63,7 +63,12 @@
             </button>
           </span>
           <br />
-          <div v-if="!comment.deletedAt" v-html="comment.text" dir="auto" />
+          <div
+            v-if="!comment.deletedAt"
+            v-html="comment.text"
+            dir="auto"
+            :lang="comment.language"
+          />
           <div v-else>{{ $t("[This comment has been deleted]") }}</div>
           <div class="load-replies" v-if="comment.totalReplies">
             <p v-if="!showReplies" @click="fetchReplies">

js/src/components/Event/EventCard.vue

@@ -39,7 +39,12 @@
           />
         </div>
         <div class="media-content">
-          <h3 class="event-title" :title="event.title" dir="auto">
+          <h3
+            class="event-title"
+            :title="event.title"
+            dir="auto"
+            :lang="event.language"
+          >
             {{ event.title }}
           </h3>
           <div class="content-end">

js/src/components/Event/EventMinimalistCard.vue

@@ -17,7 +17,7 @@
       </div>
     </div>
     <div class="title-info-wrapper has-text-grey-dark">
-      <h3 class="event-minimalist-title">
+      <h3 class="event-minimalist-title" :lang="event.language" dir="auto">
         <b-tag
           class="mr-2"
           type="is-warning"

js/src/components/Event/EventParticipationCard.vue

@@ -51,7 +51,9 @@
                 params: { uuid: participation.event.uuid },
               }"
             >
-              <h3 class="title">{{ participation.event.title }}</h3>
+              <h3 class="title" :lang="participation.event.language">
+                {{ participation.event.title }}
+              </h3>
             </router-link>
           </div>
           <inline-address

js/src/components/Post/PostListItem.vue

@@ -10,7 +10,9 @@
       style="height: 120px"
     />
     <div class="title-info-wrapper has-text-grey-dark">
-      <h3 class="post-minimalist-title">{{ post.title }}</h3>
+      <h3 class="post-minimalist-title" :lang="post.language">
+        {{ post.title }}
+      </h3>
       <p class="post-publication-date">
         <b-icon icon="clock" />
         <span dir="auto" class="has-text-grey-dark" v-if="isBeforeLastWeek">{{