Remove overflow: hidden

This line doesn't seem to do anything * shrug

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

res/css/structures/_ScrollPanel.scss

@@ -21,6 +21,5 @@ limitations under the License.
         display: flex;
         flex-direction: column;
         justify-content: flex-end;
-        overflow: hidden;
     }
 }