Fix Domain GRPC->Thrift mapping and increase test coverage

[natemort]

What changed?

• Fixed the mapping of Domain data in responses from GRPC
• Increased test coverage

Why?

• Fixing bugs and preventing future ones.

How did you test it?

Potential risks

Release notes

Documentation Changes

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.08%. Comparing base (9746755) to head (313a1c1).
Report is 1 commits behind head on master.

Additional details and impacted files

Files with missing lines	Coverage Δ
...ence/internal/compatibility/thrift/TypeMapper.java	68.90% <100.00%> (+51.44%)	⬆️

... and 8 files with indirect coverage changes

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