Fix playlist header button spacing

Previously there was no spacing between the "Play all" and "Edit"
button in the playlist view. This fixes the issue by putting all
header buttons into their own "ui buttons" div similar to the
ArtistBase.vue component.

changes/changelog.d/1271.enhancement

+Add spacing after "Play all" button in playlist view (!1271)

front/src/views/playlists/Detail.vue

@@ -15,40 +15,46 @@
                 :translate-n="playlist.tracks_count"
                 :translate-params="{count: playlist.tracks_count, username: playlist.user.username}"
                 translate-context="Content/Playlist/Header.Subtitle">
-                Playlist containing %{ count } track, by %{ username }
+              Playlist containing %{ count } track, by %{ username }
               </translate><br>
               <duration :seconds="playlist.duration" />
             </div>
           </div>
         </h2>
         <div class="ui hidden divider"></div>
-        <play-button class="vibrant" :is-playable="playlist.is_playable" :tracks="tracks"><translate translate-context="Content/Queue/Button.Label/Short, Verb">Play all</translate></play-button>
-        <button
-          class="ui icon labeled button"
-          v-if="$store.state.auth.profile && playlist.user.id === $store.state.auth.profile.id"
-          @click="edit = !edit">
-          <i class="pencil icon"></i>
-          <template v-if="edit"><translate translate-context="Content/Playlist/Button.Label/Verb">Stop Editing</translate></template>
-          <template v-else><translate translate-context="Content/*/Button.Label/Verb">Edit</translate></template>
-        </button>
-        <button
-          class="ui icon labeled button"
-          v-if="playlist.privacy_level === 'everyone' && playlist.is_playable"
-          @click="showEmbedModal = !showEmbedModal">
-          <i class="code icon"></i>
-          <translate translate-context="Content/*/Button.Label/Verb">Embed</translate>
-        </button>
-
-        <dangerous-button v-if="$store.state.auth.profile && playlist.user.id === $store.state.auth.profile.id" class="ui labeled danger icon button" :action="deletePlaylist">
-          <i class="trash icon"></i> <translate translate-context="*/*/*/Verb">Delete</translate>
-          <p slot="modal-header" v-translate="{playlist: playlist.name}" translate-context="Popup/Playlist/Title/Call to action" :translate-params="{playlist: playlist.name}">
-            Do you want to delete the playlist "%{ playlist }"?
-          </p>
-          <p slot="modal-content"><translate translate-context="Popup/Playlist/Paragraph">This will completely delete this playlist and cannot be undone.</translate></p>
-          <div slot="modal-confirm"><translate translate-context="Popup/Playlist/Button.Label/Verb">Delete playlist</translate></div>
-        </dangerous-button>
-      </div>
-      <modal v-if="playlist.privacy_level === 'everyone' && playlist.is_playable" :show.sync="showEmbedModal">
+        <div class="header-buttons">
+          <div class="ui buttons">
+            <play-button class="vibrant" :is-playable="playlist.is_playable" :tracks="tracks"><translate translate-context="Content/Queue/Button.Label/Short, Verb">Play all</translate></play-button>
+          </div>
+          <div class="ui buttons">
+            <button
+              class="ui icon labeled button"
+              v-if="$store.state.auth.profile && playlist.user.id === $store.state.auth.profile.id"
+              @click="edit = !edit">
+              <i class="pencil icon"></i>
+              <template v-if="edit"><translate translate-context="Content/Playlist/Button.Label/Verb">Stop Editing</translate></template>
+              <template v-else><translate translate-context="Content/*/Button.Label/Verb">Edit</translate></template>
+            </button>
+          </div>
+          <div class="ui buttons">	
+            <button
+              class="ui icon labeled button"
+              v-if="playlist.privacy_level === 'everyone' && playlist.is_playable"
+              @click="showEmbedModal = !showEmbedModal">
+              <i class="code icon"></i>
+              <translate translate-context="Content/*/Button.Label/Verb">Embed</translate>
+            </button>
+            <dangerous-button v-if="$store.state.auth.profile && playlist.user.id === $store.state.auth.profile.id" class="ui labeled danger icon button" :action="deletePlaylist">
+              <i class="trash icon"></i> <translate translate-context="*/*/*/Verb">Delete</translate>
+              <p slot="modal-header" v-translate="{playlist: playlist.name}" translate-context="Popup/Playlist/Title/Call to action" :translate-params="{playlist: playlist.name}">
+              Do you want to delete the playlist "%{ playlist }"?
+              </p>
+              <p slot="modal-content"><translate translate-context="Popup/Playlist/Paragraph">This will completely delete this playlist and cannot be undone.</translate></p>
+              <div slot="modal-confirm"><translate translate-context="Popup/Playlist/Button.Label/Verb">Delete playlist</translate></div>
+            </dangerous-button>
+          </div>
+        </div>
+        <modal v-if="playlist.privacy_level === 'everyone' && playlist.is_playable" :show.sync="showEmbedModal">
         <h4 class="header">
           <translate translate-context="Popup/Album/Title/Verb">Embed this playlist on your website</translate>
         </h4>
@@ -62,7 +68,8 @@
             <translate translate-context="*/*/Button.Label/Verb">Cancel</translate>
           </button>
         </div>
-      </modal>
+        </modal>
+      </div>
     </section>
     <section class="ui vertical stripe segment">
       <template v-if="edit">