Allow for multi line media descriptions
There is no reason a user should not be able to enter alternative text as multiple lines, while it does not impact screen readers either way, for those who use alternative text in a visual manner, which many do, the ability to only have one line for the text does not make sense. I am currently working on a branch to correct this issue, however i do not understand the codebase well enough to make it work nicely (eg. resizing automatically).