prevents creating file list
[TODO]: add styles for media table
[TODO]: add code to generate thumbnails for non-image files
[TODO]: documentation
constant CONTENT_URL added
outputs head tag for dashboard
contains fonts styles
contains dashboard element styles
[TODO]: show files as table with actions. Implement file delete action
media upload path changed
[TODO]: implement handler in iframe click function
function is_image moved to class-media-files.php
[TODO]: prevent displaying script files