Make sure that all buttons in the actions area have pointer

Also include a elements here, as a elements without href, as is used
in some places in Minerva, does not have a pointer by default.

Bug: T145493
Change-Id: I08d9176e55ec298c9d423d391b6fb4ed5e9df5e7

resources/skins.minerva.base.styles/pageactions.less

@@ -92,6 +92,10 @@
 			text-indent: inherit;
 			outline: 0;
 		}
+		a,
+		button {
+			cursor: pointer;
+		}
 
 		&:first-child {
 			margin-top: 0;