chore: remove grpc ids

[jacobrkerstetter]

Description

• remove _grpc_id from code base
• designs.py has a few CommandsStub reference that still have this
• rework problem area ids to abstract Int32Value object to _grpc layer

Issue linked

Related to #1817

Checklist

• I have tested my changes locally.
• I have added necessary documentation or updated existing documentation.
• I have followed the coding style guidelines of this project.
• I have added appropriate unit tests.
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved to the PR if any.
• I have assigned this PR to myself.
• I have added the minimum version decorator to any new backend method implemented.
• I have made sure that the title of my PR follows Conventional commits style (e.g. feat: extrude circle to cylinder)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.27%. Comparing base (830c6d3) to head (25bd0d0).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2295      +/-   ##
==========================================
+ Coverage   95.23%   95.27%   +0.04%     
==========================================
  Files         169      169              
  Lines       11175    11150      -25     
==========================================
- Hits        10642    10623      -19     
+ Misses        533      527       -6     

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[RobPasMue]

Small comment - other than that, LGTM! I'll reapprove right after

[RobPasMue]

LGTM!