Associated docs

Link to the associated Trello task: Task 54

Changes

• Create the session with the CSV information
• Listen firebase sessions
• Show the tasks from firebase
• Close listener

Change type

• New feature
• Breaking change (Change with potential of breaking a part of the project)

Code quality

• My code follows the defined guidelines
• I have reviewed and tested my code
• My changes don't cause new warnings
• My code has relevant tests
• My unit tests are passing