fix mutt cache folder cannot have @

bin/mw

@@ -127,8 +127,8 @@ set from = \"$mwaddr\"
 set sendmail = \"$msmtpbin -a $mwaccount\"
 alias me $mwname <$mwaddr>
 set folder = \"imaps://$mwaddr@$mwimap:$mwiport\"
-set header_cache = $mwcachedir/$mwaccount
-set message_cachedir = $mwcachedir/$mwaccount
+set header_cache = $mwcachedir/$mwaccount_
+set message_cachedir = $mwcachedir/$mwaccount_
 set imap_user = \"$mwlogin\"
 set imap_pass = \"\`pass $mwpass\`\"
 account-hook \$folder 'set imap_user=\"$mwlogin\" imap_pass=\"\`pass $mwpass\`\"'
@@ -184,6 +184,7 @@ EOF
 	    read -r mwname
 	fi
 	mwaccount=$mwaddr
+	mwaccount_="${mwaccount//[.@]/_}"
 	if [ -z $mwlogin ]; then
 	    printf "Type your account username if different from your email address.\\n\033[34mFor most accounts you can probably leave this blank.\033[0m\\n\tLogin(?): \033[36m"
 	    read -r mwlogin
@@ -195,7 +196,7 @@ EOF
 	    getpass
 	fi
 	getprofiles
-	mkdir -p "$mwmuttdir" "$mwaccdir" "$mwcachedir/$mwaccount" "$mwconfigdir/msmtp"
+	mkdir -p "$mwmuttdir" "$mwaccdir" "$mwcachedir/$mwaccount_" "$mwconfigdir/msmtp"
 	[ ! -f "$mwmsmtprc" ] && echo "$msmtp_header" > "$mwmsmtprc"
 	echo "$msmtp_profile" >> "$mwmsmtprc"
 	case "$mwservice" in
@@ -259,8 +260,12 @@ finalize() {
 	postponed=$(echo "$boxes" | grep -i -m 1 draft | sed 's/=/+/g')
 	trash=$(echo "$boxes" | grep -i -m 1 trash | sed 's/=/+/g')
 	sed -i "/^mailboxes\|^set record\|^set postponed\|^set trash\|^set spoolfile/d" "$mwaccrc"
-	{ echo "set spoolfile = \"$spoolfile\""; echo "set record = \"$record\""; echo "set postponed = \"$postponed\""; echo "set trash = \"$trash\""; } >> "$mwaccrc"
-	mwaccount_="${mwaccount//[.@]/_}"
+	cat >> "$mwaccrc" <<EOF
+set spoolfile = "$spoolfile"
+set record = "$record"
+set postponed = "$postponed"
+set trash = "$trash"
+EOF
 	echo "mailboxes =${mwaccount_%_*} ===================== $(echo "$boxes" | sed -e "s/^\|$/\"/g" | tr "\n" " ")" >> "$mwaccrc"
 	printf "Setting up your keyboard shortcuts for jumping between mailboxes...\\n"
 	sed -i "/# mw-autogenerated/d" "$mwaccrc"
@@ -272,6 +277,7 @@ finalize() {
 	echo "$boxes" | grep -i junk | head -n 1 | formatShortcut j junk
 	echo "$boxes" | grep -i archive | head -n 1 | formatShortcut a archive
 	idnum=${mwaccrc%%-*}
+	idnum=${idnum##*/}
 	muttsync="<sync-mailbox><enter-command>source $mwaccrc<enter><change-folder>\!<enter>;<check-stats>"
 	echo "macro index,pager i$idnum '$muttsync' \"switch to $mwaddr\" # mw-autogenerated" >> "$mwaccrc"
 	if [ "$mwtype" = "offline" ]; then
@@ -294,13 +300,14 @@ mwpick() {
 	[ -z "$input" ] && return 1
 	mwaddr="$(echo "$accounts" | grep "$input": | awk '{print $2}')"
 	mwaccount=$mwaddr
+	mwaccount_="${mwaccount//[.@]/_}"
 	[ -z "$mwaccount" ] && printf "Invalid response." && return 1
 	return 0 ;
 }
 
 mwdelete() {
 	sed -i "/IMAPStore $mwaccount-remote$/,/# End profile/d" "$mwmbsyncrc"
-	rm -rf "$mwcachedir/$mwaccount"
+	rm -rf "$mwcachedir/$mwaccount_"
 	rm -rf "$mwaccdir/"[1-9]"-$mwaccount.muttrc"
 	sed -i "/[0-9]-$mwaccount.muttrc/d" "$mwmuttrc"
 	sed -i "/account $mwaccount/,/^\(\s*$\|account\)/d" "$mwmsmtprc"