chore: small cleanup in components

[Moopli]

• consolidate vdr api so only one api package needs to be imported
• move vmparse helper and didsignjwt signer to component/models

[codecov[bot]]

Codecov Report

Merging #3602 (0c82994) into main (3ffab16) will increase coverage by 0.00%. The diff coverage is 100.00%.

:exclamation: Current head 0c82994 differs from pull request most recent head d6b5276. Consider uploading reports for the commit d6b5276 to get more accurate results

@@           Coverage Diff            @@
##             main    #3602    +/-   ##
========================================
  Coverage   86.78%   86.78%            
========================================
  Files         355      355            
  Lines       48732    48618   -114     
========================================
- Hits        42291    42193    -98     
+ Misses       4880     4869    -11     
+ Partials     1561     1556     -5     

Impacted Files	Coverage Δ
pkg/doc/util/didsignjwt/didsignjwt.go	100.00% <100.00%> (ø)

... and 1 file with indirect coverage changes