feat(temporary): add an alert for the next session

[Afonso-santos]

I added a warming to alert the next session it will be at 14:30.

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[reviewpad]

AI-Generated Summary: This pull request modifies two files: events.js and index.tsx. The main changes made to these files include:

1. Introduced an alert warning message on two pages, warning users about a session time change.

2. The contents of the alert warning had been updated in a subsequent commit with more detailed information.

3. Formatting and linting corrections were performed, especially to object or component properties, ensuring cleaner and more readable code.

4. Lastly, a margin bottom style was applied to the alert warning for better visual spacing on the user interface.

This overall enhances the user's information update and experience.

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[MarioRodrigues10]

🚀