TabPickerViewController: Refactor to not reference tab controller directly.

App/Tabs/TabInfo.swift

@@ -0,0 +1,21 @@
+//
+//  TabInfo.swift
+//  App
+//
+//  Created by James Magahern on 8/5/22.
+//
+
+import Foundation
+import Combine
+
+struct TabInfo
+{
+    public var title:       String?
+    public var url:         URL?
+    public var favicon:     UIImage?
+    public var identifier = UUID()
+    
+    public static func ==(lhs: TabInfo, rhs: TabInfo) -> Bool {
+        return lhs.identifier == rhs.identifier
+    }
+}