New dot:ModalDialog control, wrapper for <dialog> #2908

Job	Run time
Build all projects without errors	10m 36s
JS unit tests	1m 13s
Build published projects without warnings (Release)	2m 43s
.NET unit tests (ubuntu-latest)	2m 18s
Build published projects without warnings (Debug)	2m 48s
UI tests (chrome, ubuntu-latest, Production, Default)	15m 8s
UI tests (chrome, windows-2022, Development, Default)	13m 34s
UI tests (firefox, ubuntu-latest, Development, Default)	18m 45s
.NET unit tests (windows-2022)	11m 44s
UI tests (firefox, ubuntu-latest, Production, Default)	18m 13s
.NET unit tests (macOS-latest)	3m 49s
UI tests (firefox, ubuntu-latest, Development, ExperimentalFeaturesTests)	18m 55s
UI tests (chrome, ubuntu-latest, Production, ExperimentalFeaturesTests)	13m 49s
	2h 13m 35s

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