Bug 1704781 - Adjust toolbarbutton inner padding for the tabs toolbar in touch mode. r=jaws

Differential Revision: https://phabricator.services.mozilla.com/D111817

browser/themes/shared/toolbarbuttons.inc.css

@@ -74,7 +74,7 @@
 }
 
 @media (-moz-proton) {
-:root:not([uidensity=touch]) #TabsToolbar {
+#TabsToolbar {
   /* Override the inner padding to ensure the dimensions match the tabs, but also making sure
      different types of buttons (combined-buttons-dropmarker or text) still look correct. */
   --toolbarbutton-inner-padding: calc((var(--tab-min-height) - 16px) / 2);