Buttons in presenter console does not have border radius until be we …

…hover on it

- all the btn (ex: Notes, Slider sorter etc) should have border radius on initialization
- this patch will fix the inconsistency of border radius around btn in PresenterConsole

Signed-off-by: Darshan-upadhyay1110 <[email protected]>
Change-Id: I880159a69cf5c20ac914785ca12c826c257b6c96

browser/src/slideshow/PresenterConsole.js

@@ -334,6 +334,7 @@ class PresenterConsole {
 			button.style.backgroundColor = 'transparent';
 			button.style.color = this.slideShowColor;
 			button.style.border = 'none';
+			button.style.borderRadius = this.PresenterConsoleBtnRadius;
 		});
 
 		elem = this._proxyPresenter.document.querySelector('#title-current');