[Bug] Ring Thickness instructions image gives wrong instructions

**Describe the bug**
Same issue as closed issue #44. The popup image that gives instructions on how to calculate the number for ring thickness is incorrect.
It _should_ tell the user to divide B by 1024.

**To Reproduce**
Open Custom Ring Maker
Under Ring JSON Config, hover over Ring Thickness
Image pops up, explaining how to calculate ring thickness as a value from 0-1
Image says to divide thickness B by 2048, which ends up with a wrongly sized ring.

**Expected behavior**
Image needs editing to say `= B/1024px`

**Screenshots**