Add campaign detail page with route

[joelpeace48-cell]

Add a route (e.g. /campaign/:id) and a detail page that fetches GET /api/campaigns/:id and displays full campaign info.

[cypriannwokolo2-creator]

@cypriannwokolo2-creator has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

Can I work on this issue please there's no time to waste

ℹ️ Repo Maintainers: To accept this application, review their application or assign @cypriannwokolo2-creator to this issue.