Make the panel scrollable indepedently of the page

[whiskytroll]

It is often necessary to scroll down way past the part of the text that is translated, in order to read the panels content, especially for longer panels. That means one need to scroll way back up again, and sometimes in denser texts the start point can be a bit of a pain to find.

I propose that the panel is made scrollable in it self, so that it doesn't take the entire page with it if the cursor is within the panel area when scrolling action (whether by mouse or keys) is made. Conversely if the page is being scrolled the panel should stay put.