[Breaking] Separate patreon integration from /info endpoint

[ndepaola]

Description

• Motivation for this PR is the /info page drives the title on the front page, meaning this can be slow to render according to the configured site name if the Patreon API call/s take a lil while
• This PR is an API breaking change - i.e. that the frontend and backend must be deployed together

Checklist

• I have installed pre-commit and installed the hooks with pre-commit install before creating any commits.
• I have updated any related tests for code I modified or added new tests where appropriate.
• I have manually tested my changes as follows:
  • None yet, will do this later
• I have updated any relevant documentation or created new documentation where appropriate.