Refactor routes to isolate chats route layout (#129)

This pull request refactors the routes to group them in a way that the layout of the chats route doesn't affect other routes. This improves the overall organization and maintainability of the codebase.

Update README.md, move contributing to CONTRIBUTING.md and update ima…

…ges (#58)

This pull request includes updates to the README.md file, moves the contributing guidelines to CONTRIBUTING.md, and updates images used in the project.