Long JVM arguments: Profile Editor spans multiple screens

When opening the Profile Editor window, if the JVM arguments field is long enough to exceed the monitor width, the window will span multiple monitors to accomodate. Ideally, the window shouldn't expand past the edge of the screen it's on, even if that means the entire text won't be shown.

Sidenote: I would have marked this issue as Improvement, but it's impossible to do so.