Adds album's year to base and card view (#1366)

front/src/components/audio/album/Card.vue

@@ -17,6 +17,9 @@
             {{ album.artist.name }}
           </router-link>
         </span>
+        <div v-if="album.release_date">
+          {{ album.release_date | moment('Y') }}
+        </div>         
       </div>
     </div>
     <div class="extra content">

front/src/components/library/AlbumBase.vue

@@ -59,6 +59,9 @@
               <header>
                 <h2 class="ui header" :title="object.title">
                   {{ object.title }}
+                  <span class="ui sub header" v-if="object.release_date">
+                    {{ object.release_date | moment('Y') }}
+                  </span>                   
                 </h2>
                 <artist-label class="rounded" :artist="artist"></artist-label>
               </header>