Web: a11y improvements + new properties

[Apolo (ApoloApps)]

Removed the slider and progressbar part of this PR since I have seen Oleksandr already working on it.

1. Use transform instead of left/top to avoid layout reflows, which are the most expensive operations possible
2. Use more specialized collections to improve performance avoiding boxing, allocations and overall overhead1
3. Use htmlNode.textContent also to avoid layout reflows
4. Added support for aria-readonly, SemanticsProperties.MaxTextLength and SemanticsProperties.Selected

Release Notes

Fixes - Web

• Fix missing aria attributes for textfields (read only and max text length) and selection status state