Add Thank You step to onboarding flow

[tolbrino]

Summary

Added a new final step (step 100) to the onboarding flow that displays a thank you message to users after they complete the feedback form. This provides better closure to the onboarding experience.

Key Changes

• Created new ThankYou component (src/views/onboarding/100_ThankYou.tsx) that displays a thank you message with optional close button
• Updated onboarding index to register the new step in STEP_NAMES and STEP_COMPONENTS mappings
• Modified Feedback component to navigate to step 100 instead of immediately resetting the store when feedback is submitted
• Changed Feedback to use setOnboardingStep instead of resetStore for better control over the flow

Implementation Details

• The ThankYou component accepts optional className and lastEntry props to control styling and button visibility
• The close button only appears when lastEntry is true, allowing flexibility in how the step is used
• Feedback submission now transitions to the thank you page rather than immediately closing the onboarding flow
• The thank you message thanks users for completing onboarding and providing feedback

https://claude.ai/code/session_01XZv2TCCJX7ifRBWgzroSGt

[thewanderingeditor]

Does this conflict with #68 ?

[esterlus]

Yes this is an overly complex version of #68, closing.

Please reopen if current solution does not suffice