Synchronise All Accounts when Swiping Account List Down
[datovka #975838]
* [x] Add `sync_with_all` option into configuration file. Use same syntax as desktop application. Default value should be the same as it is on desktop.
* [x] Add 'Synchronise with all' configuration option to account settings.
* [x] Implement all account synchronisation when swiping account list down.
issue