Rust

Improve docs for `WidgetWithState` #11419

Job	Run time
Check wasm32 + wasm-bindgen	2m 30s
Format + check + test	3m 3s
android	21s
cargo-deny aarch64-apple-darwin	40s
Check Windows	2m 28s
cargo-deny aarch64-linux-android	41s
cargo-deny i686-pc-windows-gnu	43s
cargo-deny i686-pc-windows-msvc	40s
cargo-deny i686-unknown-linux-gnu	43s
cargo-deny wasm32-unknown-unknown	41s
cargo-deny x86_64-apple-darwin	42s
cargo-deny x86_64-pc-windows-gnu	44s
cargo-deny x86_64-pc-windows-msvc	41s
cargo-deny x86_64-unknown-linux-gnu	42s
cargo-deny x86_64-unknown-linux-musl	41s
cargo-deny x86_64-unknown-redox	40s
	16m 40s

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