iOS/Android Arlo Secure app update 5.2.1

[JamesC]

Included in this release:

- Arlo Secure app will now default open to Devices when there are no widgets on your Dashboard.  Otherwise, it will open to Dashboard.

- Gear icon to access Device Settings will now appear on the top right corner of each device widget, accessible from either Dashboard or Devices.

- Local Storage access for Arlo SmartHub and Base Station (VMB5000 or VMB4540) is now available from the Feed.

Note: These updates are only for Arlo Secure App experience with "Feed" and will be gradually rolled out.

Also included in this release:

 - General stability, bug fixes and performance improvements.

Android:

Gear icon to access Device Settings will now appear on the top right corner of each device widget, accessible from either Dashboard or Devices.

Note: This update is only for Arlo Secure App experience with "Feed" and will be gradually rolled out.

Also included in this release:

 - General stability, bug fixes and performance improvements.