change cursor:pointer iff clicking TagPanel background does something

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

res/css/structures/_TagPanel.scss

@@ -17,7 +17,6 @@ limitations under the License.
 .mx_TagPanel {
     flex: 0 0 60px;
     background-color: $tertiary-accent-color;
-    cursor: pointer;
 
     display: flex;
     flex-direction: column;
@@ -25,6 +24,10 @@ limitations under the License.
     justify-content: space-between;
 }
 
+.mx_TagPanel_items_selected {
+    cursor: pointer;
+}
+
 .mx_TagPanel .mx_TagPanel_clearButton_container {
     /* Constant height within flex mx_TagPanel */
     height: 70px;