De-emphasize account deletion on "Pick account" screen

[alya]

There are two problems with the account deletion interface on the "Pick account" screen:

1. In the current UI the, button for deleting the account is too prominent (bright red trash can). We expect account deletion to be quite rare, so it should be less emphasized than other actions the user can take here.

A good starting point for this would be to look at other apps to identify a set of options that users will be familiar with.

2. A confirm dialog should be added to prevent accidental account deletion.

[AlaaElden98]

I can work on this