Make polls fill column width in bubbles layout (#7661)

res/css/views/rooms/_EventBubbleTile.scss

@@ -387,6 +387,15 @@ limitations under the License.
         }
     }
 
+    .mx_MPollBody {
+        width: 550px; // to prevent timestamp overlapping summary text
+
+        .mx_MPollBody_totalVotes {
+            // align summary text with corner timestamp
+            padding: 4px 0;
+        }
+    }
+
     .mx_EditMessageComposer_buttons {
         position: static;
         padding: 0;