Implement Image Storing in Endpoints

[georginikolov7]

Description

Currently all endpoints accept image_url. This should change so all endpoints accept file.

Task:

All services have methods that accept image_url, so they need be refactored to:
PATCH, POST methods:

1. Accept file
2. Store it in aws s3 bucket
3. Write the url to the db model

• DELETE methods:

1. Delete image from s3 bucket
2. Delete db entry (currently implemented)

• Integration/ Unit tests need to be refactored !!!

Requirements:

• Use Stoyancho's Image Storing utility service
• DB models do not change, ONLY Request schemas
• There is proper validation for Image file:
  - Accept .jpg, .png, .webp formats only
  - Maximum file size: (expect update on that)