Removed some dead code, most notably the `Partition` and `PartitionMathod`
types which were not in actual use anywhere.
Also renamed some function arguments from single-/double-letter identifiers
to actual words.

In the process, did some restructuring of the `bridgeness` function
and removed the `Bridgeness` type, whose purpose was not clear.
Removed a bit of dead code in the process.

commit 8e19bf65
Author: Grégoire Locqueville <gregoire.locqueville@cnrs.fr>
Date:   Wed Jan 8 18:25:01 2025 +0100

    Remove call to `recursiveClustering'`

    Also removed some dead and commented code around the edited area.

    Note: `recursiveClustering'` was not actually recursive, it just went
    one level deeper.

This contains only data, removes some Database dependency in imports.

Basically, Gargantext.Prelude exports all of Protolude now.

Based on the suggestions in
https://kodimensional.dev/space-leak

[OK] New bridgeness implemented: user should either use the old one or the new one. The difference is showing the difference between a mindmap and a topoimap, if I had to use an BIG analogy