Disallow invalid inline style comments in stylesheets (#9099)

res/css/views/settings/_FontScalingPanel.pcss

@@ -32,11 +32,11 @@ limitations under the License.
         display: flow-root;
 
         &.mx_IRCLayout {
-            padding-top: 9px; // TODO: Use a spacing variable
+            padding-top: 9px; /* TODO: Use a spacing variable */
         }
 
         .mx_EventTile[data-layout="bubble"] {
-            margin-top: 30px; // TODO: Use a spacing variable
+            margin-top: 30px; /* TODO: Use a spacing variable */
         }
 
         .mx_EventTile_msgOption {
@@ -47,7 +47,7 @@ limitations under the License.
     .mx_FontScalingPanel_fontSlider {
         display: flex;
         align-items: center;
-        padding: 15px $spacing-20 35px; // TODO: Use spacing variables
+        padding: 15px $spacing-20 35px; /* TODO: Use spacing variables */
         background: rgba($quinary-content, 0.2);
         border-radius: 10px;
         font-size: $font-10px;