Disallow invalid inline style comments in stylesheets (#9099)

res/css/views/voip/_CallView.pcss

@@ -21,7 +21,7 @@ limitations under the License.
     background-color: $dark-panel-bg-color;
     padding-left: 8px;
     padding-right: 8px;
-    // XXX: PiPContainer sets pointer-events: none - should probably be set back in a better place
+    /* XXX: PiPContainer sets pointer-events: none - should probably be set back in a better place */
     pointer-events: initial;
 
     .mx_CallView_toast {
@@ -33,7 +33,7 @@ limitations under the License.
         border-radius: 4px;
         z-index: 50;
 
-        // Same on both themes
+        /* Same on both themes */
         color: white;
         background-color: #17191c;
     }
@@ -61,7 +61,7 @@ limitations under the License.
             border-radius: 10px;
 
             padding: 10px;
-            padding-right: calc(20% + 20px); // Space for the sidebar
+            padding-right: calc(20% + 20px); /* Space for the sidebar */
 
             background-color: $call-view-content-background;
 
@@ -188,7 +188,7 @@ limitations under the License.
         padding-bottom: 10px;
 
         margin: $container-gap-width;
-        // The left side gap is fully handled by this margin. To prohibit bleeding on webkit browser.
+        /* The left side gap is fully handled by this margin. To prohibit bleeding on webkit browser. */
         margin-right: calc($container-gap-width / 2);
         margin-bottom: 10px;
     }