Fix bad formatting in API docs

[AdrianDAlessandro]

Describe the bug
The API docs do not display in a clear and readable way. Also the title for the docs is still FastAPI - this should be changed to Gridlington and a little preamble included.

To Reproduce
Steps to reproduce the behavior:

1. Go to http://liionsden.rcs.ic.ac.uk/docs
2. View the formatting of the docs under each API

Expected behavior
I expected the FastAPI docs to respect the Google docstring style but they do not.

Additional context
FastAPI docs render the entire docstring as markdown, including the parameters definitions. The docstrings for the api functions need to be updated to include a brief description, followed by and escaped form feed character \f to not render the parameters as markdown

Aha! Link: https://imperial-college-ict.aha.io/requirements/RSE-141-24