fix: add back multi-vp handling

[TimoGlastra]

Same as #182 but to main instead of the mdoc branch. @sanderPostma so you can decide if you can merge it as part of mdoc or do it separately.

Basically it doesn't allow the $ to be used if the presentations is an array, or vice versa $[0] if it's an object. Should be an easy fix, but you code does need to handle what it passes in (important whther an array with 1 entry or an object is passed)

[codecov]

Codecov Report

Attention: Patch coverage is 65.21739% with 8 lines in your changes missing coverage. Please review.

Project coverage is 92.65%. Comparing base (772a058) to head (41c83d3).
Report is 28 commits behind head on develop.

Files with missing lines	Patch %	Lines
lib/evaluation/evaluationClientWrapper.ts	65.21%	8 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #183      +/-   ##
===========================================
- Coverage    92.81%   92.65%   -0.16%     
===========================================
  Files           66       66              
  Lines         2728     2737       +9     
  Branches       711      717       +6     
===========================================
+ Hits          2532     2536       +4     
- Misses         190      195       +5     
  Partials         6        6              

Flag	Coverage Δ
unittest	92.65% <65.21%> (-0.16%)	⬇️

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