chore: ruff cleanup

[RazCrimson]

Fixes all formatting by ruff

@nicolargo
Should we add something like precommit tooling that automatically runs ruff on each and every commit?

Something like would be nice: https://github.com/pre-commit/pre-commit

[nicolargo]

Why not, there is some examples here: https://github.com/astral-sh/ruff?tab=readme-ov-file#installation

We just have to take into account the following thinks in this PR:

• remove all others format targets but ruff in the Makefile (format should run ruff): https://github.com/nicolargo/glances/blob/develop/Makefile#L88-L94
• hava a look on the existing Ruff configuration file: https://github.com/nicolargo/glances/blob/develop/pyproject.toml#L6-L51

[RazCrimson]

@nicolargo
Could you give this a spin on your end?

I've just enabled some of the easy to fix lint rules that should not change any behavior.
Enabling all of them would require a lot more changes than this.

I think it would be better to enable the others slowly over other releases as they would require more invasive code changes.

[nicolargo]

Review ok on my side, i have to reconfigure my VSCode to set Ruff as the default Linter (instead of Flake8). I just push some minors changes.

PR can be pushed on develop.