fix(api, app): add `unsafe/flexStacker/store so we can recover from a stacker error

[ahiuchingau]

Overview

We currently call manualRetrieve when skipping a stacker store labware step when recovering from an error. This is wrong and would cause the ER to be stuck in a loop forever.

This PR adds the manualStore command so we can actually skip the store step.

Fixes RQA-4514

[codecov]

Codecov Report

❌ Patch coverage is 0% with 49 lines in your changes missing coverage. Please review.
✅ Project coverage is 23.63%. Comparing base (3635cb6) to head (994a46e).
⚠️ Report is 1 commits behind head on chore_release-8.6.0.

Files with missing lines	Patch %	Lines
...ms/ErrorRecoveryFlows/hooks/useRecoveryCommands.ts	0.00%	30 Missing ⚠️
...ganisms/ErrorRecoveryFlows/shared/SkipStepInfo.tsx	0.00%	19 Missing ⚠️

Additional details and impacted files

@@                   Coverage Diff                   @@
##           chore_release-8.6.0   #19178      +/-   ##
=======================================================
- Coverage                24.01%   23.63%   -0.38%     
=======================================================
  Files                     3377     3377              
  Lines                   296971   297015      +44     
  Branches                 31523    31521       -2     
=======================================================
- Hits                     71304    70191    -1113     
- Misses                  225649   226806    +1157     
  Partials                    18       18              

Flag	Coverage Δ
app	0.97% <0.00%> (-1.12%)	⬇️
protocol-designer	18.92% <0.00%> (-0.01%)	⬇️
step-generation	5.37% <0.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...ganisms/ErrorRecoveryFlows/shared/SkipStepInfo.tsx	0.00% <0.00%> (ø)
...ms/ErrorRecoveryFlows/hooks/useRecoveryCommands.ts	0.00% <0.00%> (ø)

... and 89 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.