Add ability to add message for participation and improve participation

management interface

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

js/src/components/NavBar.vue

@@ -29,7 +29,7 @@
               <figure class="image is-32x32" v-if="identity.avatar">
                 <img class="is-rounded" :src="identity.avatar.url" alt="" />
               </figure>
-              <b-icon v-else icon="account-circle" />
+              <b-icon v-else size="is-medium" icon="account-circle" />
             </div>
 
             <div class="media-content">
@@ -180,6 +180,10 @@ nav {
       background: $secondary;
     }
 
+    span.icon.is-medium {
+      display: flex;
+    }
+
     img {
       max-height: 2.5em;
     }