Use camelCase for exposed / public props and methods (Svelte's code convention)

[vatro]

I like snake case. The question is what to use for exposed props and methods. I've started with camel, then here and there switched to snake if I've found it more readable.

Especially interesting:

• based on shadowMapSize -> shadowMap vs. shadowmap (shadowmap snake wins)
• on_pointerout (current) -> vs. onPointerOut vs. onPointerout (snake wins)

hm...

shadowMapSize -> shadowmap_size ? lookAt -> lookat ? castShadow-> cast_shadow ? receiveShadow-> receive_shadow ? boxParams -> box_params ? renderTarget -> render_target vs. rendertarget ? renderTargetParams -> render_target_params vs. rendertarget_params ? tabindex vs, tabIndex aniauto vs. aniAuto

onDestroy_inject_before -> 👀 ?!

[vatro]

Ok, no wild things here, let's use Svelte's code conventions

• snake_case for internal variable names and methods.
• camelCase for public variable names and methods.

[vatro]

I've already done a lot of this, just needs a final check + there are some props that still need to be changed.