Added 3 new styles for bar buttons. (#168)

* Added a new style called split for bar buttons

* Added wavy button styles.

* Added padding configuration

* Update bar padding

* Fix styling for battery style2

* Fix icon only setting for bar

* Update types and options

* Add button style to exported theme props.

* Fix top margin for menus.

modules/bar/systray/index.ts

@@ -41,6 +41,7 @@ const SysTray = () => {
         isVisible: true,
         boxClass: "systray",
         isVis,
+        props: {}
     };
 };