Refactor the getErrorMessage function

[borodovisin]

In this PR the repeated function getErrorMessage per component was removed.
Now it is a generic function in the utils.ts file.

The pure function will receive all the needed information to generate and return an error message.

Each component calls the function with specific information, to make a readable message to show to the final user in the UI.

[codecov]

Codecov Report

Merging #190 (8a753e3) into main (b4086ab) will increase coverage by 2.65%.
The diff coverage is 91.66%.

@@            Coverage Diff             @@
##             main     #190      +/-   ##
==========================================
+ Coverage   88.16%   90.82%   +2.65%     
==========================================
  Files          18       18              
  Lines         355      338      -17     
  Branches      111      100      -11     
==========================================
- Hits          313      307       -6     
+ Misses         42       31      -11     

Impacted Files	Coverage Δ
...rc/components/braintree/BraintreePayPalButtons.tsx	100.00% <ø> (ø)
src/components/PayPalMessages.tsx	6.66% <33.33%> (+4.16%)	⬆️
src/components/PayPalButtons.tsx	98.33% <100.00%> (-0.18%)	⬇️
src/components/PayPalMarks.tsx	100.00% <100.00%> (ø)
...onents/hostedFields/PayPalHostedFieldsProvider.tsx	100.00% <100.00%> (ø)
src/components/hostedFields/utils.ts	100.00% <100.00%> (ø)
src/utils.ts	100.00% <100.00%> (ø)

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