Fix UI regression (#37218)

Fix  #37213

Also fix the misaligned tags, remove unused classes, etc.

web_src/css/modules/message.css

@@ -84,15 +84,6 @@
   border-color: var(--color-warning-border);
 }
 
-/* use opaque colors for buttons inside colored messages */
-.ui.message .ui.button:hover {
-  background: var(--color-secondary);
-}
-
-.ui.message .ui.button:active {
-  background: var(--color-secondary-hover);
-}
-
 .ui.message > .close.icon {
   cursor: pointer;
   position: absolute;