Fix voice message playback being squished up against send button

In the style shuffle of #5970 the playback bar got squished up against the send button. This just fixes the selector to actually hit the composer-based recorder all the time, not just when recording.

Author: turt2live

res/css/views/rooms/_VoiceRecordComposerTile.scss

@@ -46,11 +46,11 @@ limitations under the License.
     mask-image: url('$(res)/img/element-icons/trashcan.svg');
 }
 
-.mx_VoiceRecordComposerTile_recording.mx_VoiceMessagePrimaryContainer {
+.mx_MessageComposer_row .mx_VoiceMessagePrimaryContainer {
     // Note: remaining class properties are in the PlayerContainer CSS.
 
     margin: 6px; // force the composer area to put a gutter around us
-    margin-right: 12px; // isolate from stop button
+    margin-right: 12px; // isolate from stop/send button
 
     position: relative; // important for the live circle