Updated sync js file to properly handle Uint8Arrays.
Updated sync js file to properly handle Uint8Arrays.

brave/browser-ios,brave/browser-ios,brave/browser-ios,brave/browser-ios,brave/browser-ios,Allow2CEO/browser-ios,Allow2CEO/browser-ios,brave/browser-ios,Allow2CEO/browser-ios,brave/browser-ios,brave/browser-ios,Allow2CEO/browser-ios,Allow2CEO/browser-ios,Allow2CEO/browser-ios,Allow2CEO/browser-ios,Allow2CEO/browser-ios,brave/browser-ios