fix(profiles): ensure uniqueness of contact name

[dated]

Summary

Adds checks to ensure the uniqueness of a contacts name during creation and update.

Checklist

• Documentation (if necessary)
• Tests (if necessary)
• Ready to be merged

[codecov]

Codecov Report

Merging #614 into master will increase coverage by 0.24%.
The diff coverage is 93.75%.

@@            Coverage Diff             @@
##           master     #614      +/-   ##
==========================================
+ Coverage   64.12%   64.37%   +0.24%     
==========================================
  Files          82       83       +1     
  Lines        1550     1569      +19     
  Branches      138      144       +6     
==========================================
+ Hits          994     1010      +16     
- Misses        523      524       +1     
- Partials       33       35       +2     

Flag	Coverage Δ
#unit	64.37% <93.75%> (+0.24%)	⬆️

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Impacted Files	Coverage Δ
...dk-profiles/src/repositories/contact-repository.ts	92.72% <93.33%> (+3.36%)	⬆️
packages/platform-sdk-profiles/src/profile.ts	69.49% <100.00%> (ø)
packages/platform-sdk-coincap/src/utils.ts	63.63% <0.00%> (ø)

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