[USER STORY]: As a user, I would like to upload files in the chat.

[martinsenecal]

About this story

Priority: [Low]
Story Points: Fibonacci Sequence: 8
Risk: Low

Description:
Users should be able to upload files (with a max upload size) directly into the chat in order for the other user to see it.

Exit Criteria
What should we expect once the task is complete:
-File Uploading Form working with data validation (size, etc)
-File is Uploaded to the Cloud
-File is visible in the Chat and can be downloaded by the other user.

Sub-Tasks/Steps

• Add Form Validation (frontend-side/backend-side)
• Connection with Firebase Storage
• Link files to the chat as a message.
• Create UI (Figma/React)
• Add Tests

Additional context
Add any other context or screenshots about the feature request here.

Linked to Issue: #35