Unified ssl settings for nginx + typo fix

etc/apache2/sites-available/dolibarr.conf

etc/apache2/sites-available/nextcloud.conf

etc/apache2/sites-available/tetras-back.conf

etc/nginx/sites-available/dolibarr.conf

etc/nginx/sites-available/nextcloud.conf

etc/nginx/sites-available/tetras-back.conf

etc/nginx/ssl.conf

installDolibarr.sh

installNextcloud.sh

installTetrasBack.sh