Tags: mgiuca/two-hands

Bump version to 0.1.0.

Fix WebXR button and input detection.

Had to partially roll back the OpenXR Action Map work because WebXR
doesn't use it. Instead, we manually detect the trigger and button input
names that we so gracefully avoided.

WebXR works again, but probably only on Touch/Pico and similar
controllers.

Removed the font Play.

Was only being used for the version number in the corner in the WebXR
load, not worth having a font for that.

Also removed main menu scene which I thought I removed before.

Major fix for ball bouncing randomly.

It turns out that balls were frequently bouncing off the 'shadow'
animatable body of the other ball, or in some cases even themselves,
because the animatable body was invisible but its collision sphere was
still active.

This would look like a ball randomly bouncing off to nowhere, but it can
be seen and reproduced clearly if debug collision shapes are turned on.

Disabled the ball objects when not in use.

Baby: Has to be fed for 2s before activating.

Bowling ball: stop rolling sound if stops moving.