Fixes and improvements to the jam entry version:

* The text input fields should work now. I can only test on Meta Quest 2 right now, through the built-in browser and using a link cable.

* I've tweaked the physics a bit and sharpened the darts (in fact, the latter is a bug-fix where my 'sharp tip' code wasn't executing)

* I've polished the shields (they appear once you've scored 15, 30 & 45 points, btw)

* NIGHT AND DAY! - You can choose between FOUR different skybox/time of day options!