Support transforms for each widget #2366

Job	Run time
cargo check (aarch64-android)	21s
cargo check (msrv) (wasm32)	17s
cargo check (msrv) (windows-latest)	1m 52s
cargo clippy (windows-latest)	5m 20s
cargo check (msrv) (macos-latest)	37s
cargo clippy (macos-latest)	2m 32s
cargo clippy (wasm32)	1m 56s
cargo check (msrv) (ubuntu-latest)	44s
cargo doc	41s
cargo clippy (ubuntu-latest)	3m 14s
formatting	33s
Prime LFS Cache	5s
cargo test (wasm32)	25s
typos	4s
cargo test (windows-latest)	4m 7s
cargo test (macos-latest)	1m 31s
cargo test (ubuntu-latest)	4m 45s
	29m 4s

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