TabPickerViewController: Refactor to not reference tab controller directly.

App/Utilities/UIView+Utils.swift

@@ -0,0 +1,20 @@
+//
+//  UIView+Utils.swift
+//  App
+//
+//  Created by James Magahern on 8/5/22.
+//
+
+import UIKit
+
+protocol Conf { }
+
+extension Conf {
+    @discardableResult
+    func conf(_ block: (Self) -> Void) -> Self {
+        block(self)
+        return self
+    }
+}
+
+extension UIView: Conf {}