🐛 Fix ProtonMail log-on failure when adding a new account

Part 2 of 2 for "Log-on not successful" bug when using ProtonMail.

The curl login check uses the imap(s) protocol, which means it will use
the default ports. However, when using ProtonMail, these ports are
different (namely 1143 instead of 993).

We now use the port variable in the curl login command, defaulting to
993 when the port was not overridden.

The port variable was already set when the ProtonMail flag (-p) was set.

Bug mentioned in:
Fixes:
- https://github.com/LukeSmithxyz/mutt-wizard/issues/608
- https://github.com/LukeSmithxyz/mutt-wizard/issues/622

Part 1 of 2 for "Log-on not successful" bug when using ProtonMail.

The curl login check defaults to `imaps` when `protocol` isn't set.
Because ProtonMail isn't using any TLS, we have to use the `imap`
protocol.
The `protocol` variable was never set, so now we set it when the
ProtonMail flag (-p) is set.

Bug mentioned in:
Fixes:
- https://github.com/LukeSmithxyz/mutt-wizard/issues/608
- https://github.com/LukeSmithxyz/mutt-wizard/issues/622

Update mailsync to check XDG_CONFIG_HOME for mutt config dir

added unitn.it related email infos

possible email are:
- username@studenti.unitn.it
- username@ex-studenti.unitn.it
- username@alumni.unitn.it
- username@unitn.it

changed 'gpg --fullgenkey' to the correct command.

remove https://lukesmith.xyz/crypto

[README] add info and link to stable AUR package

Since version tags/releases have been  introduced lately, Arch users are
now able to choose between a 'stable' and a 'development' package.

Formatting changes, precision to TFA google

cloe #367

add Sina and Sohu Mail

rm mbsync requirement for online storage

the new script manually searches for environmental variables
so that it can work from a cronjob
and additionally searches for all Xorg displays on Linux
so that the display notification should appear correctly
no doubt there will be more bugs, but this is what the people want
and it's worth working out

update domains.csv

Fix mailboxes on macos

The Mac version of paste requires "-" to read from STDIN. Without "-", the "mailboxes" line in ~/.config/accounts/<email address>.muttrc is empty upon adding a new mailbox via `mw -a <email address>`. The Linux version of paste works fine if "-" is added.

Add USP-BR email

under the inbox is used for something else
closes #581

update domains.csv