[SDK-813] Remix: Provide Non-Root Implementation #1844

Preliminary Checks

• I have reviewed https://clerk.com/docs for existing features that would solve my problem

• I have searched for existing feature requests: https://github.com/clerkinc/javascript/issues

• This issue is not a question, general help request, or anything other than a feature request directly related to Clerk. Please ask questions in our Discord community: https://clerk.com/discord.

Description

The current documentation encourages the user to create a root loader and wrap the main App with ClerkApp however this is not an efficient implementation for a few reasons:

1. There is no way to avoid making a call to the ClerkAPI every request, if some routes are unauthenticated, it is wasted latency.
2. Any use of getAuth() in a loader will cause additional requests as there is no request-level cache (eg: storing promise on the remix context, keeping in mind that loaders execute in parallel).

Rather than only offer ClerkApp as a solution, encourage the user use ClerkProvider directly and provide a getClerkState() call that returns valid types for TS.

Affected Packages

@clerk/remix

_SDK-813