fix(Provider): add ProviderBoxProps and div attributes to ProviderProps

[miroslavstastny]

Provider by default renders ProviderBox which by default renders a div.

child props

Provider only accepted ProviderProps. It was not possible to pass any ProviderBox props (like styles) or div attributes (like id).

Now it accepts all of these.

theme prop

Previously, theme was required prop. But as new props were added to the Provider, it now makes sense to instantiate the Provider without the theme just changing other params (rtl).

This PR makes theme optional.

This still does not make sense for top level provider but there already is a runtime check for that.

Fixes #1424.

[codecov]

Codecov Report

Merging #1601 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1601   +/-   ##
=======================================
  Coverage   71.68%   71.68%           
=======================================
  Files         847      847           
  Lines        6915     6915           
  Branches     1965     1985   +20     
=======================================
  Hits         4957     4957           
  Misses       1952     1952           
  Partials        6        6

Impacted Files	Coverage Δ
...ackages/react/src/components/Provider/Provider.tsx	95.34% <ø> (ø)	⬆️

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