[FEATURE] Implemented save and exit button
[FEATURE] Added edit & new mode method
Implemented data grid new version (1th stage)
Implemented default locacale
Updated .htaccess
Updated .htaccess
[IMPROVE] Improved Request component
[IMPROVE] Added both variants to use url with language key and without language keys.
[BUGFIX] Fixed Request system $_GET variables
[BUGFIX] Fixed database order method
[FEATURE] Added grid order functionality
[BUGFIX] Fixed new DataTable order
[BUGFIX] removed console.log
[FEATURE] Implement ordering by columns
[BUGFIX] Fixed data grid actions