Restructure repository as a monorepo

[sweep-ai-deprecated]

Description

This PR restructures the repository as a monorepo, following the request in issue #28. The changes are built on top of PR #27.

Summary of Changes

• Created a new 'packages' directory at the root level of the repository.
• Moved the 'client' and 'server' directories into the 'packages' directory.
• Updated the 'client/package.json' and 'server/package.json' files to reflect their new locations in the 'packages' directory.
• Updated any 'require' statements or other references to the old directory structure in the 'client' and 'server' code.
• Updated the 'start.sh' and 'setup.sh' scripts to reference the new locations of the 'client' and 'server' directories.
• Updated the 'docker-compose.yml' file to reference the new locations of the 'client' and 'server' directories.

Please review and merge this PR to complete the restructuring of the repository as a monorepo.

Fixes #28.

To checkout this PR branch, run the following command in your terminal:

git checkout sweep/restructure-monorepo