add empty search state

[ken-zlai]

Summary

Checklist

• Added Unit Tests
• Covered by existing CI
• Integration tested
• Documentation update

Summary by CodeRabbit

• New Features
  • Enhanced command dialog functionality with a new message display for empty search results.
  • Improved user feedback when searches yield no results, providing a clearer indication of the outcome.

[coderabbitai]

Walkthrough

The changes introduce the CommandEmpty component into the NavigationBar.svelte file, enhancing the command dialog's functionality. This new component is displayed within the CommandList when there are no search results, modifying the control flow to provide clearer user feedback. The existing structure of the command dialog remains unchanged, but the logic now includes conditional rendering based on the length of searchResults, improving error handling and user experience.

Changes

File Path	Change Summary
frontend/src/lib/components/NavigationBar/NavigationBar.svelte	Added import for CommandEmpty and integrated it into the command dialog for displaying messages when no search results are found.

Poem

In the navbar bright and fair,
A new friend joins to share,
When searches yield no sight,
CommandEmpty shines so bright!
A message clear, no need to fret,
User joy is now well met! 🐇✨

---

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[coderabbitai]

Actionable comments posted: 1

🧹 Outside diff range and nitpick comments (1)

frontend/src/lib/components/NavigationBar/NavigationBar.svelte (1)

Line range hint 178-207: Enhance empty state accessibility and user experience

Consider improving the empty state message to be more helpful and accessible:

1. Add aria-label for screen readers
2. Provide more context about why no results were found
3. Consider adding suggestions for what users can try next

Example implementation:

- <CommandEmpty>No results found</CommandEmpty>
+ <CommandEmpty>
+   <div aria-label="No search results" class="text-center">
+     <p class="text-sm font-medium">No results found for "{input}"</p>
+     <p class="text-xs text-muted-foreground">
+       Try searching with different keywords or browse quick actions below
+     </p>
+   </div>
+ </CommandEmpty>

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between ea3b1db and 79a6144.

📒 Files selected for processing (1)

• frontend/src/lib/components/NavigationBar/NavigationBar.svelte (2 hunks)

🔇 Additional comments (2)

frontend/src/lib/components/NavigationBar/NavigationBar.svelte (2)

10-11: LGTM: Clean import addition

The CommandEmpty component import is properly grouped with related command components.

---

Line range hint 178-207: Address PR checklist items

The empty state implementation is a good start, but please ensure you:

1. Add unit tests for the empty state behavior
2. Update documentation to reflect the new empty state feature
3. Verify integration testing with different search scenarios

Let's check for existing tests:

Would you like help with:

1. Generating unit tests for the empty state behavior?
2. Creating documentation updates?