fix(RTL): align text to left

[miroslavstastny]

Fixes #776.

Stardust sets dir="auto" on all text content. To correctly handle bidirectional text.
The problem is that the attribute also changes default text-align to right for RTL text (which breaks LTR layout) and to left for LTR text (which breaks RTL layout).

This fix sets text-align on ProviderBox and PopupContent explicitly to avoid the problem.

• Changelog

[codecov]

Codecov Report

Merging #1115 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1115   +/-   ##
=======================================
  Coverage   82.35%   82.35%           
=======================================
  Files         727      727           
  Lines        8672     8672           
  Branches     1232     1167   -65     
=======================================
  Hits         7142     7142           
  Misses       1515     1515           
  Partials       15       15

Impacted Files	Coverage Δ
...hemes/teams/components/Popup/popupContentStyles.ts	40% <ø> (ø)	⬆️
...emes/base/components/Provider/providerBoxStyles.ts	50% <ø> (ø)	⬆️

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[kuzhelov]

as we are expecting this to be applied to any popup content (i.e. the one that is provided not as an object prop, but as regular react element), like in the following case:

<Popup ... content={<div>...</div>}>

then we need to apply this to Popup's popup slot in general