Register some extra types to type registry

[InnocentusLime]

Objective

Fixes #8415.

Solution

I simply added the missing types to the type registry.

Changelog

Added #[reflect(Component] to bevi_ui::ui_node::ZIndex, since it impls Component and Reflect.

The following types have been added to the type registry:

1. bevy_ui::ZIndex
2. bevy_math::Rect
3. bevy_text::BreakLineOn
4. bevy_text::Text2dBounds

[james7132]

Yet another case that might have been resolved via #5781.

[MrGVSV]

Awesome, thanks for this!

[InnocentusLime]

Yet another case that might have been resolved via #5781.

Indeed. Can't wait for that amazing feature to land one day!

[MrGVSV]

Yet another case that might have been resolved via #5781.

Yeah, that PR is ready. Just kinda waiting on review now. Especially since it's been deemed controversial.

[nicoburns]

Could someone explain to me what the purpose of registering types in the type registry is? I added the CSS Grid types because all the other style types seemed to be added. But I wasn't sure why as it compiled just fine without me registering the types.

[MrGVSV]

Could someone explain to me what the purpose of registering types in the type registry is? I added the CSS Grid types because all the other style types seemed to be added. But I wasn't sure why as it compiled just fine without me registering the types.

@nicoburns it's pretty much for reflection and serialization. The registry holds type information which can be used at runtime to do things dynamically. But it's also (and most importantly) used to serialize and deserialize types using reflection. Additionally, it's needed in scenes in order to both deserialize and actually create/apply the contained components (using ReflectComponent).

More details can be found on the docs.