Add tests for the CreateCommitment wizard step components and WizardStepper navigation

[1nonlypiece]

📌 Description

Only tests/components/CreateCommitmentStepReview.test.tsx exists for the
creation wizard. CreateCommitmentStepSelectType.tsx,
CreateCommitmentStepConfigure.tsx, and WizardStepper.tsx are untested, even
though they carry the wizard's branching and validation behavior.

This issue adds tests for the remaining step components and stepper navigation.

Goal: verify each wizard step renders, validates input, and that the
stepper advances/retreats correctly with state preserved.

🎯 Requirements and Context

• Test CreateCommitmentStepSelectType (type selection: Safe / Balanced /
  Aggressive) emits the chosen profile.
• Test CreateCommitmentStepConfigure input validation (amount, duration)
  against protocol bounds.
• Test WizardStepper step indicator, forward/back navigation, and disabled
  states.
• Assert keyboard operability of the stepper.

🛠️ Suggested Execution

1. Create a branch

git checkout -b feature/wizard-step-tests

2. Implement changes

• Add tests/components/CreateCommitmentStepSelectType.test.tsx,
  tests/components/CreateCommitmentStepConfigure.test.tsx, and
  tests/components/WizardStepper.test.tsx.

3. Test and commit

• Run npm test.
• Edge cases: invalid amount/duration, back navigation preserving state,
  disabled next when invalid.

Example commit message

test: cover create wizard steps and WizardStepper navigation

✅ Guidelines

• Minimum 95% test coverage on the targeted components.
• Clear, descriptive test names.
• Timeframe: 96 hours.

🏷️ Labels

type-testing · area-frontend · MAYBE REWARDED · GRANTFOX OSS · OFFICIAL CAMPAIGN

💬 Community & Support

• Join the CommitLabs contributor Discord: https://discord.gg/WV7tdYkJk
• Introduce yourself before starting to avoid duplicate work.
• Maintainers triage actively and review fast.