Increased the max username length from 26 bytes to 64 bytes

SessionMessagingKit/Utilities/ProfileManager.swift

@@ -9,7 +9,7 @@ import SessionUtilitiesKit
 public struct ProfileManager {
     // The max bytes for a user's profile name, encoded in UTF8.
     // Before encrypting and submitting we NULL pad the name data to this length.
-    private static let nameDataLength: UInt = 26
+    private static let nameDataLength: UInt = 64
     public static let maxAvatarDiameter: CGFloat = 640
     
     private static var profileAvatarCache: Atomic<[String: Data]> = Atomic([:])