fix(tooltip): fix isOpen and undefined containerClass [fixes #2257]

[IlyaSurmay]

No description provided.

[codecov]

Codecov Report

Merging #2262 into development will decrease coverage by 0.06%.
The diff coverage is 33.33%.

@@              Coverage Diff               @@
##           development   #2262      +/-   ##
==============================================
- Coverage        87.46%   87.4%   -0.07%     
==============================================
  Files               95      95              
  Lines             2681    2683       +2     
  Branches           358     358              
==============================================
  Hits              2345    2345              
- Misses             214     216       +2     
  Partials           122     122

Impacted Files	Coverage Δ
src/tooltip/tooltip.directive.ts	67.7% <33.33%> (-1.45%)	⬇️

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