Fix OS 26 build errors

Signed-off-by: Daniel D’Aquino <daniel@daquino.me>

damus/Shared/Media/Video/DamusVideoCoordinator.swift

@@ -7,7 +7,7 @@
 
 import Combine
 import Foundation
-import SwiftUICore
+import SwiftUI
 import AVFoundation
 
 /// DamusVideoCoordinator is responsible for coordinating the various video players throughout the app, and providing a nicely orchestrated experience.

damus/Shared/Utilities/DataExtensions.swift

@@ -0,0 +1,17 @@
+//
+//  DataExtensions.swift
+//  damus
+//
+//  Created by Daniel D’Aquino on 2025-09-17.
+//
+import Foundation
+
+extension Data {
+    var byteArray: [UInt8] {
+        var bytesToReturn: [UInt8] = []
+        for i in self.bytes.byteOffsets {
+            bytesToReturn.append(self[i])
+        }
+        return bytesToReturn
+    }
+}