JetBrains: we check the access token twice at plugin load

Created by: vdavid

Context

When loading the plugin, we do an access token verification in index.ts, and then another one in App.tsx.

Problem

As @philipp-spiess pointed it out here, we always do the two requests with the same token, so the second request is not needed.

Solution

Suggested solution: Memoize getAuthenticatedUser and noop when it was called again with the same accessToken