[Misc] Migrate from useSWR to react-query

[zsh-eng]

Let's migrate to react-query from useSWR.

Reasons:

1. Broader range of features
2. Improved developer experience with more hooks and utilities
3. Larger community and ecosystem
4. Better documentation

TODO:

• React Query: Set up fetcher functions for various backend endpoints #199
• React Query: Set up reusable hooks for fetching data e.g. useAllVenues with useQuery. #200
• React Query: Migrate existing useSWR logic to react-query and remove useSWR library #201
• React Query: add loading and error states for components that fetch data #202