We need to change focus to last active element in case of "clearDialog"

Problem:
    - in case of submenu (for example in Calc there is a conditional format menu )
    - when we open submenu it and then press ESC it changes focus back to document
    - and the main parent menu stays open without focus

Solution: - call LastElement focus before Clear dialog so it works as expected (MSO does the same)
Signed-off-by: Darshan-upadhyay1110 <darshan.upadhyay@collabora.com>
Change-Id: Ic8fa988f3a8854a99c44d0fde5a7dec32e398739

browser/src/control/Control.JSDialog.js

@@ -145,7 +145,10 @@ L.Control.JSDialog = L.Control.extend({
 				console.warn('closePopover: no builder');
 		}
 		else {
+			// Need to change focus to last element before we clear the current dialog
+			this.focusToLastElement(id);
 			this.clearDialog(id);
+			return;
 		}
 
 		this.focusToLastElement(id);