(SP: 3) Add review submission functionality to AddReviewModal.tsx

[dudchakk]

Description: The AddReviewModal.tsx component needs to be updated to enable submitting reviews to the backend. This involves creating a service to handle the API POST request and integrating it with the modal so that review data is sent and saved in the reviews collection upon submission.

Create the service:

Develop a function to send a POST request to the backend. The data sent must include:

• comment - string,
• rating - number,
• targetUserId - ObjectId,
• targetUserRole - UserRoleEnum,
• offer - ObjectId

Endpoints to send data to: POST http://localhost:8080/reviews/

Integrate the service with the modal:

• Attach the service to the Submit button in AddReviewModal.tsx;
• Collect the input values from the modal and pass them to the service.