Automatically check SSL checkbox when LE is selected (#5837)

Closes #5837

See merge request !1276

Adds TLSv1.3 detection & support to Nginx

See merge request !1251

trimmed the code since it seems to be enough to provide TLS 1.3 when Nginx was linked against OpenSSL 1.1.1 at build time

Resolve "Add ciphers for TLSv1 and TLSv1.1 to Postfix"

Closes #5839

See merge request !1277

Use correct path for AWStats on CentOS

Closes #4993

See merge request !1243

Add missing translation for datalog status server ip (#5716)

Closes #5716

See merge request !1270

Fix column amount (#5827)

Closes #5827

See merge request !1269

Resolve "Blank page after login"

Closes #5826

See merge request !1268

Resolve "jk_init:  Error: `/usr/bin/less` and `/var/www/clients/client15/web20/usr/bin/less` are the same file"

Closes #5825

See merge request !1267

Resolve "GoAccess stats blocked by Content Security Policy (nginx)"

Closes #5815

See merge request ispconfig/ispconfig3!1265

Resolve "Add id to server_get_php_versions for API"

Closes #5824

See merge request !1266

Resolve "Check mailman paths on CentOS 8"

Closes #5810

See merge request ispconfig/ispconfig3!1264

Fix visual issue #5820

Closes #5820

See merge request ispconfig/ispconfig3!1262

Centos8 dovecot paths

See merge request ispconfig/ispconfig3!1258

Resolve "Postfix recipient_delimiter not working with catchall defined"

Closes #5814

See merge request ispconfig/ispconfig3!1260

Fix Nginx SSL placeholders in apps_vhost_plugin.inc.php

See merge request ispconfig/ispconfig3!1259

Add missing document_root field to query, fixes #5625

Closes #5625

See merge request !1256

copy configure_postfix settings from installer_base

Closes #5812

See merge request ispconfig/ispconfig3!1255

Merge branch '5813-improve-mysql-database-plugin-code-for-mariadb-10-4-compatibility' into 'develop'

Resolve "Improve mysql database plugin code for MariaDB 10.4 compatibility"

Closes #5813

See merge request ispconfig/ispconfig3!1254