outputs dashboard header
[TODO]: add styles for horizontal form
[TODO]: add border for featured image holder
[TODO]: add remove featured image option if image once set
[TODO]: implement custom filter using form elements
function getLastQuery added
[TODO]: add editor buttons and their event listeners
event listeners enclosed in document.ready
[TODO]: add editor buttons styles
[TODO]: implement file upload
styles for floating iframe and its containers
floating div background image
displays a floating iframe