nwHacks 2024 Portal long question #3 fix

[meleongg]

Description

• fixed validation, firebase saving/loading, and review functionality for long questions number 3
• followed testing practices as highlighted here

Other considerations

• N/A

[github-actions[bot]]

Visit the preview URL for this PR (updated for commit d0b28ad):

https://nwplus-ubc--pr505-dev-0eqb5z1i.web.app

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