Making popovert presentation background color dynamic.

This allows to have a dark popovert presentation background color on Dark Mode.

Author: etoledom

WordPressEditor/WordPressEditor/Classes/ViewControllers/OptionsTableViewController/OptionsTablePresenter.swift

@@ -58,7 +58,7 @@ public class OptionsTablePresenter: NSObject {
         optionsViewController.popoverPresentationController?.permittedArrowDirections = [.down]
         optionsViewController.popoverPresentationController?.sourceView = barItem
         optionsViewController.popoverPresentationController?.sourceRect = barItem.bounds
-        optionsViewController.popoverPresentationController?.backgroundColor = .white
+        optionsViewController.popoverPresentationController?.backgroundColor = optionsViewController.cellBackgroundColor
         optionsViewController.popoverPresentationController?.delegate = self
 
         presentingViewController.present(optionsViewController, animated: true, completion: completion)