feat(editors): add min/max length options to text editors

[ghiscoding]

• add a text length counter (currentTextLength/maxLength) to the LongText Editor
• the new minLenght, maxLength options can be used by the following Editors (autoComplete, longText, text)
• also flip the position of the Cancel/Save buttons, Cancel should be on the left and Save on the right

[codecov]

Codecov Report

Merging #30 into master will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #30      +/-   ##
==========================================
+ Coverage   99.60%   99.60%   +0.01%     
==========================================
  Files         185      185              
  Lines       10017    10062      +45     
  Branches     3297     3415     +118     
==========================================
+ Hits         9976    10021      +45     
  Misses         41       41              

Impacted Files	Coverage Δ
...es/common/src/editorValidators/integerValidator.ts	100.00% <ø> (ø)
packages/common/src/editors/autoCompleteEditor.ts	100.00% <ø> (ø)
packages/common/src/editors/textEditor.ts	100.00% <ø> (ø)
packages/common/src/constants.ts	100.00% <100.00%> (ø)
...kages/common/src/editorValidators/textValidator.ts	100.00% <100.00%> (ø)
packages/common/src/editors/longTextEditor.ts	100.00% <100.00%> (ø)

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