base64_image field type small fix
base64_image field type small fix

fede91it/crud,Laravel-Backpack/crud,Laravel-Backpack/crud,Laravel-Backpack/crud,fede91it/crud,fede91it/crud,fede91it/crud,imagina/asgardcms-bcrud,imagina/asgardcms-bcrud,Laravel-Backpack/crud