statistics on applications

statistics page should include:

- github commit log-like visual to show how many job apps applied per day
- attainability / priority score similar to cli
- most active job applications (or something)
- geographical location highlighter (may need an api key)
- etc

Look at the existing statistics page and data models for job applications. The feature requires designing new visualizations (commit log style, geographical map) and integrating external APIs. Start by exploring the backend API endpoints that serve application data and the frontend components that render charts. Check if there's an existing mapping or chart library in use.

Scritto dal modello di indicizzazione a partire dal testo della issue.