Changed some colors, some keymaps and made it more flexible for new mail
account setups. Also removed most of the static gmail-related account
stuff since I don't need this in my public repo.
Updated key mappings to use `,` as the 'local-prefix' (or 'macro-prefix') which
allows easier setup for an additional functionality layer.
Also make `dd` the standard way to delete a whole sub-thread instead of
single mail by single mail of a conversation. That functionality can now
be achieved with `dD` instead, while `dd` removes a whole thread (not
just sub-thread).
Added page up/down movement with the C-u/d/b/f key combinations, as well
as message and thread removal with dd (message), dT (thread) and dt
(sub-thread) chords.
Replies have been changed to rr (reply all) or ro (reply one).
The 'new' flag can be toggled by s (for seen) as previously, though now
other flags can be toggled with S and all messages can be marked as seen
with C-s.
Other things are mostly the same, though threads can be collapsed with
za (one) or zA (all) and moved between with gt/gT.
The beginning of what I hope can be a useful integration: send mails to
taskwarrior as tasks and open the corresponding mail from tasks in
taskwarrior.
To make a task out of an e-mail, in neomutt, simply press `t` when the
mail is selected or opened. It will create an automatic task in
taskwarrior with the description "Reply to [mail] by [sender]" and tag
it as mail.
If you press `T` instead, you can give the task your own description and
tags.
In taskwarrior, you can simply `t open <taskid>` on a task that came
from neomutt to show the message content on the command line (using
notmuch). This is still a bit rudimentary and I would like an improved
display, but it works for now.
