Support transforms for each widget #2487

Job	Run time
cargo check (msrv) (wasm32)	23s
cargo check (msrv) (windows-latest)	3m 6s
cargo clippy (windows-latest)	27s
cargo check (msrv) (macos-latest)	33s
cargo clippy (macos-latest)	28s
cargo check (aarch64-android)	21s
cargo check (msrv) (ubuntu-latest)	40s
cargo clippy (wasm32)	1m 54s
cargo clippy (ubuntu-latest)	32s
cargo doc	1m 53s
formatting	29s
Prime LFS Cache	4s
cargo test (wasm32)	18s
typos	3s
cargo test (windows-latest)	3m 15s
cargo test (macos-latest)	1m 27s
cargo test (ubuntu-latest)	3m 2s
	18m 55s

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