Examples: Clean up.

[Mugen87]

Related issue: #21712

Description

Ensures correct code style in new WebXR code.

[Mugen87]

@fe1ixz @mrdoob While fixing the code style, I have noticed two things:

• TOUCH_RADIUS is undefined.

three.js/examples/jsm/webxr/OculusHandModel.js

Line 88 in a51bed7

const indexSphere = new Sphere( pointerPosition, TOUCH_RADIUS );

• handedness is undefined, too.

three.js/examples/jsm/webxr/XRHandMeshModel.js

Line 61 in a51bed7

console.warn( `Couldn't find ${jointName} in ${handedness} hand mesh` );

[mrdoob]

• TOUCH_RADIUS is undefined.

Fixed. 2c9b143

• handedness is undefined, too.

@fe1ixz What's the fix for this one?

[mrdoob]

• handedness is undefined, too.

Should be fixed now. 571347f