Merge new release

Add `instant` dependency for time in wasm build

docs: Fix build error and panic in book chapter 1

docs: Fix build errors in example chapter 3

book: Fix typos in the book chapter numbers

Update chapter_1.md

Don't depend on bevy default features

add_plugin(KayakWidgetsContextPlugin) is required for it to work (I don't know why lol)

docs: Fix typos in chapter 2

Add missing license fields to cargo manifests

Also copied from the hello_world example

Seems to be the same code as the hello_world example, so I just copied the semi-colon from there.

More release prep stuff.

Updated readme/cargo to v0.2.

Fixed font rendering when using some font sizes.

make rsx macro return the root entity

Implemented grid layout style props

Fixed texture atlas messed up from DPI.