Delete all local files on account removal

[tobiasKaminsky]

Ref: #627

To discuss:

• how to prevent that an user clicks on account removal and then immediately kills the app to prevent file deletion

[AndyScherzinger]

you can't I#d say, the user could also copy all the files manually and then delete the account.
Else you would nbeed to do cyclic checks for account folders for which there is no account in the database...

[tobiasKaminsky]

So you are fine with this?

[mario]

Well you could run the remove process in a job ...

[tobiasKaminsky]

Sure, but I wanted to have this done on the moment the user clicks on it and not scheduled for sometimes later.

[mario]

Solution:

• strike out the account name (aka, you can't click it)
• switch to other acc if it exists, if not show login screen
• run a job (you can schedule it to run after 3 seconds, and in the future you'll be able to schedule it right away :P) with all the delete magic
• prevent adding the same account while there is pending delete for that account
• done :D

[AndyScherzinger]

@tobiasKaminsky yes, that means I am fine with deleting all local files on account removal 👍

[mario]

@tobiasKaminsky can you please do the things I've written here so we can merge this?

[tobiasKaminsky]

Done 🎉

Tested with

• initially 2 accounts, removing one -> manage account activity with striked through account, drawer only shows persisting account
• initially 1 account, removing one -> login screen

[mario]

@AndyScherzinger if you feel like this is ok, feel free to merge - I will not be able to review it in a while. Thanks.

[AndyScherzinger]

👍 tested successfully after latest rebase