message: use % instead of fr units for grid, make size independant of content
diff: @@ -16,8 +16,8 @@ limitations under the License.
  .mx_GroupGridView_rooms {
  display: grid;
  - grid-template-columns: 1fr 1fr 1fr;
  - grid-template-rows: 1fr 1fr;
  + grid-template-columns: repeat(3, calc(100% / 3));
  + grid-template-rows: repeat(2, calc(100% / 2));
  flex: 1 1 0;
  }
  