Switch accounts when in the composer mode. When switching accounts, the
From header, the crypto status and the address completer will be
updated.
Accounts can be switched with :switch-account <account-name>. The
completions for the switch-account command will list the available
accounts. If switch-account is run without arguments, the current
account name with the correct usage is displayed.
Fixes: https://todo.sr.ht/~rjarry/aerc/72
Signed-off-by: Koni Marti <koni.marti@gmail.com>
Acked-by: Robin Jarry <robin@jarry.cc>
