create a drop down menu for allowing user to select from the content embed and the style embed

[evangelia-mitsopoulou]

Desired Behavior: When the user clicks on the embed button on the right side bar, a drop down menu opens that contains:

• The produced html code for the content embedded page in an input field which is focused and the code is selected.
• A tip to the user on how to copy the produced html code.
• A sub container with the title: Options. The sub container contains two buttons: a) Big: Content Embed Stye and b) Small: Badge Embed Style
• Close button (or alternatively the user can close the drop down menu by clicking elsewhere else)