Commit Briefs
UI improvements
* loading animation * add url to struct tab
update cmd_{previous,next}_line
cmd_{previous,next}_line used COLS and LINES, this adapts them to body_{cols,lines}. While there, also add the ability to scroll when trying to go past the beginning/end of the screen.
fix clear minibuffer
clminibufev_set was never set, so it would enqueue the event again...