min-width

We need to allow the container to be smaller

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

res/css/structures/_RoomView.scss

@@ -140,6 +140,7 @@ limitations under the License.
     display: flex;
     flex-direction: column;
     width: 100%;
+    min-width: 0;
 }
 
 .mx_RoomView_body {