Front-end refactors

[MKuijpers]

• [ ] Add airbnb ESLint config + format all files
• [ ] React-query
  • Consistent query and mutation naming
  • Use terms "get", "create", "delete", and "upload" to make more intuitive query and mutation names:
  • E.g. useGetStickerPacks, useGetStickerPack, useDeleteStickerPack (no Mutation suffix), useUploadSticker
  • Remove type templates from the useQuery and useMutation calls, react-query can infer those