This commit moves project search filtering from the server to the
client.
Changes include:
- Remove `Query` field from `ListTablosInput` and related handlers
- Add French date formatting for project cards
- Convert search form to client-side filter with data attributes
- Add empty state message for no search results
- Update button border-radius from 0 to 0.7rem
- Increase air.toml build command to include Tailwind CSS generation
