[WO-643] Refactor initialization workflow

* Move initialization pre-flight checks to app-controller
* Refresh cached public keys for user during incomplete setups
* Reorder redirect checks in login ctrl from most specific (pubkey + privkey) to most generic (no keys)
* Add overridePermission flag to KeychainDAO.refreshKeyForUserId to refresh w/o asking for user permission
Merge pull request #158 from whiteout-io/dev/WO-643

[WO-643] Refactor initialization workflow