[CW2-30] Design event cards

[derekxu04]

• TODO: have some message if there are no upcoming events

[derekxu04]

Some changes:

• automatic sliding is too fast
• see sponsors carousel -> do we want to refactor to just reuse that? but that one doesn't have buttons but pretty sure can just change props to include it
• no carousel for previous rents, just display in a grid (as we will have too many...)
• for home page, just have the carousel of upcoming events i think and then see all events for the events page

ACTUALLY UPDATE WITH CORRECT EVENT DATA -> in future should decide a process to do this (e.g. how often, when redeploy website, before automatic is done, maybe can write a script to do this for you manually before automating it properly)

[derekxu04]