feat: add slider widget with horizontal and vertical support #2751

Job	Run time
cargo check (msrv) (windows-latest)	2m 30s
cargo check (aarch64-android)	22s
cargo check (msrv) (macos-latest)	37s
cargo check (msrv) (wasm32)	14s
cargo check (msrv) (ubuntu-latest)	38s
cargo clippy (windows-latest)	1m 13s
cargo clippy (wasm32)	1m 54s
cargo doc	2m 11s
cargo clippy (macos-latest)	1m 11s
formatting	35s
cargo clippy (ubuntu-latest)	1m 14s
cargo miri (unsafe tree_arena)	45s
Prime LFS Cache	3s
cargo test (wasm32)	18s
typos	7s
cargo test (windows-latest)	1m 51s
cargo test (macos-latest)	1m 2s
cargo test (ubuntu-latest)	1m 43s
	18m 28s

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