Minor fixes, split files into folders

Shared/Player/Player.swift

@@ -0,0 +1,14 @@
+import SwiftUI
+
+struct Player: UIViewControllerRepresentable {
+    var video: Video?
+
+    func makeUIViewController(context _: Context) -> PlayerViewController {
+        let controller = PlayerViewController()
+        controller.video = video
+
+        return controller
+    }
+
+    func updateUIViewController(_: PlayerViewController, context _: Context) {}
+}