Change text for direction offsets in settings

[d0mf1g]

Currently it is: "This value can be either positive or negative based on the direction of the offset."

That should be replaced with explicit instructions, e.g., "Positive value for Y moves bubble to further down; negative value moves it further up."

I was playing around with the settings and became confused as to why a positive value of Y would lower the bubble rather than move it up; then I realized computer screen orientations start at the top left. Most people, when they see X-Y directions, would instead recall what they learned in their math class (where Y positive is up).

[d0mf1g]

While we are on the settings text issue, I recommend just removing the footnotes and instead move the text next to their appropriate settings.