"Add second device" should include the "export backup" option

ftr, we have a “Troubleshooting” item on all devices and for sending and receiving.

Troubleshooting offers different solutions first, before finally going for “Manual Transfer” (aka “Export Backup”), which arguably should really be the last resort. but, it is not a “trick”, it is clearly mentioned.

surely, things can be improved, but i am not sure that pointing users to “manual transfer” before they tried everything else from Troubleshooting would improve things overall.

eg. offering an option “Export Backup” directly, we would have less ppl reading troubleshouting and finding out, their issue was a different one, and getting stuck with transferring backup from android to ios …