Merge pull request microsoft#200087 from microsoft/merogge/acb

on left/right arrow, also update focused elt

Author: meganrogge

src/vs/base/browser/ui/actionbar/actionbar.ts

@@ -201,7 +201,7 @@ export class ActionBar extends Disposable implements IActionRunner {
 			}
 
 			// Recompute focused item
-			else if (event.equals(KeyCode.Tab) || event.equals(KeyMod.Shift | KeyCode.Tab) || event.equals(KeyCode.UpArrow) || event.equals(KeyCode.DownArrow)) {
+			else if (event.equals(KeyCode.Tab) || event.equals(KeyMod.Shift | KeyCode.Tab) || event.equals(KeyCode.UpArrow) || event.equals(KeyCode.DownArrow) || event.equals(KeyCode.LeftArrow) || event.equals(KeyCode.RightArrow)) {
 				this.updateFocusedItem();
 			}
 		}));