Add `LabelBar` datagrid mode #1648

Job	Run time
lint_and_docs (ubuntu-22.04, 3.11, 22.x)	10m 46s
build_and_test_rust (ubuntu-22.04, x86_64, 22.x)	14m 49s
build_js (ubuntu-22.04, 3.11, 22.x)	25m 58s
build_emscripten_wheel (ubuntu-22.04, x86_64, 3.11, 22.x)	19m 51s
build_python (ubuntu-22.04-arm, aarch64, 3.11, 22.x)	14m 47s
build_python (ubuntu-22.04, x86_64, 3.11, 22.x)	17m 53s
test_python (ubuntu-22.04, x86_64, 3.11, 22.x)	1m 58s
test_python (ubuntu-22.04-arm, aarch64, 3.11, 22.x)	2m 27s
test_emscripten_wheel (ubuntu-22.04, x86_64, 3.11, 22.x)	2m 46s
build_and_test_jupyterlab (ubuntu-22.04, x86_64, 3.11, 22.x)	3m 17s
test_js (ubuntu-22.04, 3.11, 22.x)	6m 44s
benchmark_python	-1s
benchmark_js	-1s
test_python_sdist	0s
publish	0s
	2h 1m 14s

Provide feedback