Lone Pair Can Be Dragged When Not Shown

[JRomero0613]

For https://github.com/phetsims/QA/issues/279 when the lone pairs are not shown, the region where the lone pairs were can be selected and dragged, making it confusing for the user. To replicate this make a molecule with lone pairs on the model screen, or select a molecule with lone pairs on the real molecules screen. Select the "show lone pairs" box such that the lone pairs are not shown, the lone pairs will disappear from the screen. Now move the cursor to the region of the screen where the lone pairs were, the cursor will change to a hand indicating it can be selected, and the molecule can be rotated and manipulated by clicking and dragging this area. I understand conceptually how this makes sense but from the view of the user it looks like some blank space around the molecule has an impact on the molecule. I have attached a video in google drive illustrating this point. https://drive.google.com/file/d/1bb3-jwjs9P4RjAnq8_ONnw0Q5ggLKebO/view?usp=sharing This issue is not cause for the sim to not be released by any means and I will leave the decision of whether to act up to the devs, just wanted to highlight this issue.

[JRomero0613]

As was just brought up to me by @KatieWoe the entire screen can be selected to drag the molecules around. Therefore I am closing this issue.