Allow custom actions to control the frigate card.

src/scss/button.scss

@@ -9,8 +9,4 @@ ha-icon-button.button {
   --ha-icon-display: block;
   /* Buttons can always be clicked */
   pointer-events: auto;
-}
-
-ha-icon-button.button.emphasize {
-  color: var(--primary-color, white);
-}
+}