Improve jk_init.ini

See merge request ispconfig/ispconfig3!1308

# Conflicts:
#   install/tpl/jk_init.ini.master

Resolve "Password lost emails not sent"

Closes #5865

See merge request ispconfig/ispconfig3!1434

Add --cert-name option to certbot calls to set primary domain instead of --expand

Closes #6061

See merge request ispconfig/ispconfig3!1418

Merge branch '6086-website-redirect-type-proxy-re-sets-to-no-redirect-when-switching-tabs' into 'develop'

Resolve "Website Redirect Type: proxy re-sets to No redirect when switching tabs"

Closes #6086

See merge request ispconfig/ispconfig3!1428

Fix query, dns_rr.name does not hold an fqdn

Closes #6083

See merge request ispconfig/ispconfig3!1424

Merge branch '6094-ignore-postfix_custom-and-dovecot_custom-config-files-in-conf-custom-check' into 'develop'

Resolve "Ignore postfix_custom and dovecot_custom config files in conf-custom check"

Closes #6094

See merge request ispconfig/ispconfig3!1436

Resolve "bind plugin should create slave subdirectory"

Closes #6070

See merge request ispconfig/ispconfig3!1435

Resolve "Update the contributing doc"

Closes #6049

See merge request ispconfig/ispconfig3!1408

Resolve "rspamd authenticated priority and misc"

Closes #6062 and #6053

See merge request ispconfig/ispconfig3!1411

Resolve "update.php removes _rspamd from redis group"

Closes #6089

See merge request ispconfig/ispconfig3!1427

Resolve "Add option to disable email welcome messages in server settings."

Closes #1804

See merge request ispconfig/ispconfig3!1429

Resolve "Disabled IPv4 address shows up in IPV4 field"

Closes #6091

See merge request ispconfig/ispconfig3!1430

Minor md tweaks

See merge request ispconfig/ispconfig3!1423

Skip possible IO extensive operations for vhostalias creation on "web" document root

Closes #6052

See merge request ispconfig/ispconfig3!1417

allow custom rspamd url (Implements #6010) use idn_decode for mailuser and login fails for mail-users with IDN domains (Fixes #6021) wrong server-id in admin/server_config_edit.php (Fixes #6022)

Closes #6022, #6021, and #6010

See merge request !1386