[templates] Add links to scrobbles

Ultimately these should probably be templated

vrobbler/templates/music/track_detail.html

@@ -28,7 +28,7 @@
                 <tbody>
                     {% for scrobble in scrobbles.all %}
                     <tr>
-                        <td>{{scrobble.local_timestamp}}</td>
+                        <td><a href={{scrobble.get_absolute_url}}>{{scrobble.local_timestamp}}</a></td>
                         <td><a href="{{scrobble.track.get_absolute_url}}">{{scrobble.track.title}}</a></td>
                         <td><a href="{{scrobble.track.primary_album.get_absolute_url}}">{{scrobble.track.primary_album}}</a></td>
                         <td><a href="{{scrobble.track.artist.get_absolute_url}}">{{scrobble.track.artist}}</a></td>