Lower gravity on most of the planets

[BEEFE]

Not using the template because this is a simple one.

Suggested ballpark values:

• Vulcanus: 15 m/s² (down from 40)
• Gleba: 8 m/s² (down from 20)
• Aquilo: 5 m/s² (down from 15)

This is just an aesthetic suggestion because I don't think that values of gravity greater than 1 m/s² affect anything, but I saw that Vulcanus has a gravity of 40 m/s² and my eyes popped out of my head (squeezed out by gravity). Jupiter only has a surface gravity of 25 m/s², Neptune of 11 m/s², and everything else is less than Earth. 10 m/s² appears to be very hard to exceed, and a planet made of low-density ice and oceans like Aquilo would have a much lower surface gravity than something high in silicon and heavy metals like Earth or Nauvis.