Fix some typos, backticks, new clippy lint. (#683) #1565

Job	Run time
cargo fmt	22s
cargo clippy (windows-latest)	3m 49s
cargo clippy (macos-latest)	1m 1s
cargo clippy (wasm32)	1m 25s
cargo clippy (ubuntu-latest)	1m 29s
Prime LFS Cache	6s
cargo test (wasm32)	28s
cargo check (msrv) (windows-latest)	2m 1s
cargo check (msrv) (wasm32)	46s
cargo check (msrv) (macos-latest)	44s
cargo check (aarch64-android)	24s
cargo check (msrv) (ubuntu-latest)	55s
cargo doc	59s
typos	7s
cargo test (windows-latest)	1m 42s
cargo test (macos-latest)	1m 36s
cargo test (ubuntu-latest)	2m 58s
	20m 52s

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