Loading/syncing should happen off the main UI thread on Android app

[Snuupy]

Steps To Reproduce

1. login to mobile app
2. have a large number of items (say, several thousand)
3. wait for app to sync
4. try to interact with app on any UI elements, such as clicking the search button
5. see android prompt that the app is "not responding" and prompts user to either keep waiting or to force close the app

Expected Result

should sync/load/decrypt login store without having the OS think the app is frozen and needs to be force closed. probably needs to be done by having the data load in another thread, not on the main UI thread.

Actual Result

user prompted to wait/force close app

Screenshots or Videos

Additional Context

from: https://www.reddit.com/r/IAmA/comments/w3zsff/im_dw_technical_evangelist_at_bitwarden_here_with/ih1eizw/

Operating System

Android

Operating System Version

12

Device

pixel 4a

Build Version

2022.6.2 (4851)

Beta

• [ ] Using a pre-release version of the application.