Merge branch '7512-php83-update' into 'master'

config/aliases.json.dist

config/redirects_www.example.com.json

config/redirects_www.example.com.json.dist

docs/20_▶️_Installation.md

docs/30_⚙️_Configuration.md

docs/style.css

public_html/admin/index.php

public_html/admin/main.css

public_html/classes/redirect.admin.class.php

public_html/classes/redirect.class.php

public_html/index.php

test/get_redirect.php