Choosing a mod option while "Choose an install path" section is on the screen causes screen to jiggle

[drojf]

When toggling mod options, if the "Choose an install path" section is visible, it will cause the "validation" prompt to be visible for a split second, which pushes everything down on the page. then when validation is finished, it goes back to its original position.

It seems that if the "Choose an install path" section is not visible, the browser does some optimization and does not redraw it, so there is no jiggle.

Not sure if I introduced this bug when i added the loading icons for validation, or if it was always there

[drojf]

Looks like this only happens if the validation text is a different number of lines to the 'normal' text. The jiggle happens because the text changes to two lines during validation, then back to one line after validation, for example.