- move db and models ns to browser module
- remove browser navigation/preload-data
- rewrite dapp-permission logic and move code to permissions ns
- rewrite all browser events according to guidelines and move them to
`status-im.events` ns
- rewrite tests for browser and permissions
when typing a wrong recovery phrase or password, navigating back and
returning to account-recover screen, errors about recovery phrase and
password were not cleared
get rid of navigation/preload-data in the process as it is too clunky
TODO: eventually use screen-params in the future for screen related data
Signed-off-by: yenda <eric@status.im>