refactor: Use typed responses for api calls

[theborakompanioni]

Use typed responses instead of generic Response type from fetch.

Currently, every component parses the body by itself (including error handling).
With this change applied, calling api endpoints should be much more streamlined and simplified.

e.g. from https://eckertalex.dev/blog/typescript-fetch-wrapper

async function request<T>(path: string, config: RequestInit): Promise<T> {
  const response = await fetch(new Request(path, config))
  
  if (!response.ok) {
  // TODO: use Api.Helper here instead generic Error
  throw new Error({ name: response.status, message: response.statusText })
  }
  
  // may error if there is no body, return empty
  return response.json().catch(() => ({}))
}