Add CRUD Actions in the Server & in the Client

[LiorKGOW]

Each action should have an appropriate Server Endpoint with a fitting function to execute the corresponding action in the server,
Client should handle the API requests using Axios

• Create
• Read
• Update
• Delete

Need to figure out how to add endpoints to the server & functions performing the CRUD actions

upload_image - the function in the server that upload a picture to the DB (in index.py):