fix(tooltip): fix containerClass when isOpen is true

[tarusin]

Related to: #4247

[codecov]

Codecov Report

Merging #4579 into development will increase coverage by 0.02%.
The diff coverage is 100%.

@@               Coverage Diff               @@
##           development    #4579      +/-   ##
===============================================
+ Coverage        71.42%   71.44%   +0.02%     
===============================================
  Files              259      259              
  Lines             8378     8378              
  Branches          1562     1562              
===============================================
+ Hits              5984     5986       +2     
+ Misses            1988     1985       -3     
- Partials           406      407       +1

Impacted Files	Coverage Δ
src/tooltip/tooltip.directive.ts	59.63% <100%> (ø)	⬆️
src/chronos/i18n/sk.ts	80.85% <0%> (-2.13%)	⬇️
src/chronos/i18n/cs.ts	84.74% <0%> (-1.7%)	⬇️
src/typeahead/typeahead.directive.ts	74.86% <0%> (+1.04%)	⬆️
src/chronos/i18n/uk.ts	80.48% <0%> (+2.43%)	⬆️
src/chronos/i18n/pl.ts	77.77% <0%> (+2.77%)	⬆️

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