added hover to buttons

src/less/popup.less

@@ -108,10 +108,20 @@
 			background: @accentbg;
 			font-weight: bold;
 
+			cursor: pointer;
+
 			border-radius: 1rem;
 			border: 0;
 			padding: 2rem;
 			margin: 1rem;
+
+			transition: box-shadow .5s;
+
+			&:hover {
+				color: @fg;
+				text-decoration: underline;
+				box-shadow: black 0 0 2rem;
+			}
 		}
 	}
 }