feat(ui/portal): create page to see hackathon sponsors and challenges

[HasithDeAlwis]

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Problem Statement

How can a hacker know what challenges are associated to each sponsor?

Solution

Create a page that clearly outlines our hackathon's sponsors AND show off their challenges. It should also give us a general outline of what each sponsor is looking for to win their challenge.

For inspiration see UOttaHack 7

Alternatives

N/A

Additional Context

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