[WIP] fix(#2108) get label text size from dom rendering

[camray]

Fixes #2108

Uses DOM measurements for label width and height. This method proves to be more accurate and 27% more performant than the existing approximation solution as shown below, particularly for CJK and RTL languages.

Some technical limitations include:

• Lack of support for SSR & React Native
  • The window element does not exist for either so we continue to fall back to the approximation solution.
  • It would be very helpful to get a React Native developer to add a similar solution that will work on mobile.
• Testing is difficult and non-comprehensive
  • Since jsdom doesn't actually render and there is no window width/height, it cannot be measured in tests.
  • I would love to hear solutions to this problem if any exist. Currently I'm testing that the element is added to the dom.

[scottrippey]

Feel free to resolve my comments as you wish!