implement useFeed({accountPosts: AccountPostsOptions})

[estebanabaroa]

AccountPostsOptions could be something like

{
  limit: number // limit to x newest posts
  append?: boolean // default false, because most likely the user will want to prepend
  newerThan?: number // seconds, don't append posts older than x time
}

we actually probably don't care about displacing the feed when prepending, because most UIs will use a dedicated page to post, so the feed wont be loaded, and those who use a modal to publish can use append:true to append instead.

one issue to think about is what to do if the user's post appears again in a feed, do we repeat it? maybe that should be an option.