Setup cv frontiers

[YoshikiKubotani]

Issue URL

NA

Change overview

[@2024/04/22]

• Remove the old backend code
• Remove the old frontend code
• Update some system files, such as .gitignore, Dockerfiles, and GitHub Actions yaml file

[@2024/04/13 - from enhancement/add-rag-basics branch]

• Update old Python libraries to the latest (including ones for dev)
• Implement the basic system for RAG-based chat system
• Add a Dockerfile to deploy the backend to AWS

[@2024/05/26 - from enhancement/save-chat-history branch] Backend

• Update backend packages to the latest
• Add the vector sending logic to the Qdrant Cloud
• Connect backend logic to AWS using boto3
• Change the chat response type to the streaming
• Add more strict rules to the parse mmd logic

Frontend

• Add the basic frontend UI features

How to test

Check by eye that the code is properly initialized.

Note for reviewers

[!Important] This pull request is for reflecting the code changes added during the preparation for "CV Frontiers" into the development branch. While it's not to say until the code is complete, I believe we shouldn't merge changes into the develop branch until both backend and frontend codes are functioning without issues. Therefore, several upcoming pull requests will be targeted towards setup-cv-frontiers, and this pull request will be merged afterwards.