About plugin internationalization

Hello @glenwpcoder,

I want to translate this plugin to Spanish, but I noticed you need to fix an issue with your text domain first.

The text domain you’re using in your plugin comments header and translation functions is 'dnd-upload-cf7', but your plugin slug is 'drag-and-drop-multiple-file-upload-contact-form-7'. You need to use ‘drag-and-drop-multiple-file-upload-contact-form-7’ as text domain in your plugin comments header and as text domain parameter in every translation function to enable the plugin translation in GlotPress. You can learn more here.

Hope this helps you to improve your plugin.