web-sys: Add `HtmlElement` `inert` property #1314

Job	Run time
Check	2m 3s
build_examples	4m 14s
build_nightly	2m 29s
build_benchmarks	1m 37s
Verify that web-sys is compiled correctly	1m 47s
Clippy	8m 19s
dist_linux_aarch64_gnu	4m 20s
dist_macos_aarch64	6m 12s
dist_linux_x86_64_musl	3m 56s
dist_macos_x86_64	3m 41s
doc_api	1m 35s
dist_windows	5m 32s
Rustfmt	14s
doc_book	13s
Build and test the deno example	1m 8s
Run js-sys crate tests	3m 6s
Run native tests	2m 52s
Run wasm-bindgen crate tests with multithreading enabled	4m 18s
Test TypeScript output of wasm-bindgen	2m 4s
Run UI compile-fail tests	2m 24s
Run wasm-bindgen crate tests (unix)	11m 47s
Run web-sys crate tests	4m 41s
Run wasm-bindgen-webidl crate tests	4m 14s
test_examples	3m 30s
deploy	1m 12s
	1h 27m 28s

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