message: better button alignment
  also fix sticking out at the right side when not overlaying
diff: @@ -61,7 +61,7 @@ limitations under the License.
  z-index: 100;
  right: 0;
  margin: 0 -110px 0 0;
  - padding-right: 107px;
  + padding-right: 104px;
  .mx_AccessibleButton {
  margin-left: 5px;
  @@ -77,4 +77,5 @@ limitations under the License.
  .mx_EventTile_last .mx_MessageEditor_buttons {
  position: static;
  + margin-right: -103px;
  }
  