Improve `Response.dragged`, `drag_started` and `clicked` #8902

Job	Run time
Format + check + test	5m 29s
Check wasm32 + wasm-bindgen	2m 24s
android	22s
cargo-deny aarch64-apple-darwin	41s
Check Windows	4m 11s
cargo-deny aarch64-linux-android	41s
cargo-deny i686-pc-windows-gnu	40s
cargo-deny i686-pc-windows-msvc	39s
cargo-deny i686-unknown-linux-gnu	41s
cargo-deny wasm32-unknown-unknown	41s
cargo-deny x86_64-apple-darwin	42s
cargo-deny x86_64-pc-windows-gnu	45s
cargo-deny x86_64-pc-windows-msvc	38s
cargo-deny x86_64-unknown-linux-gnu	40s
cargo-deny x86_64-unknown-linux-musl	38s
cargo-deny x86_64-unknown-redox	39s
	20m 31s

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