PRO: Check install

Check the JCI PRO Plugin Options Tab “Check Install”:

• PHP:
  In best case all is ok there.
  If you run PHP8 check the “red notice”.
  Also PHP allow_url_fopen check is displayed. If red: You must change the PHP settings to get http-access to remote URLs.
• Cache:
  In best case the cacheFolder is there and readable.
  If not: We need a writeable directory. Either change the permissions of the default folder or set another dir at Tab “Cache”
• Database for template-manager:
  In best case ok.
  If not: Check if your database is writeable and has a “…jci_pro_templates” table. There the JCI-Templates are stored.