mutt: Enable sidebar and mailboxes

mutt/.mutt/muttrc

@@ -1,3 +1,5 @@
+# vim: syntax=muttrc
+
 set mbox_type   = Maildir
 set folder      = ~/Mail
 set spoolfile   = +/fastmail/Inbox
@@ -93,7 +95,32 @@ macro index ,si "l (~n5-100|~N)\n" "show higher scoring messages"
 macro index ,hl "l ^a^k!~l\n"      "hide list messages"
 macro index ,sa "l ^a^kall\n"      "show all messages"
 
-bind pager \Cp previous-line
-bind pager \Cn next-line
 bind pager <up> previous-line
 bind pager <down> next-line
+
+set sidebar_format = "%B%?F? [%F]?%* %?N?%N/?%S"
+set mail_check_stats
+set sidebar_width = 40
+set sidebar_short_path = no
+
+bind index,pager B sidebar-toggle-visible
+bind index,pager \Cp sidebar-prev
+bind index,pager \Cn sidebar-next
+bind index,pager \Co sidebar-open
+
+mailboxes = +fastmail/Inbox
+mailboxes = +fastmail/gstreamer
+mailboxes = +fastmail/FreedesktopGitlab
+mailboxes = +fastmail/pulseaudio
+mailboxes = +fastmail/Sent
+mailboxes = +fastmail/Spam
+
+mailboxes = +asymptotic/Inbox
+mailboxes = +asymptotic/Sent
+
+mailboxes = +sanchayan/Inbox
+mailboxes = +sanchayan/gstreamer
+mailboxes = +sanchayan/FreedesktopGitlab
+mailboxes = +sanchayan/pulseaudio
+mailboxes = +sanchayan/Sent
+mailboxes = +sanchayan/Spam