fix(translations): FR - Reviewed and fixed all French labels

[LoganTann]

This PR fixes several issues with the French translations across the application, aiming to improve clarity, consistency, and overall quality.

The changes fall into a few main categories:

• Translation of all untranslated labels. Some labels and text that were previously only in English have now been translated.
• Avoiding common pitfalls of machine-level translations. E.g., Got it -> Je l'ai -> Compris
• Terminology improvements, mostly to align the UI text with typical French software conventions. E.g., hidden network -> Réseau caché -> Réseau masqué
• Typos and grammatical errors. E.g., Lanceur d'application -> Lanceur d'application*s*; Ils -> Elles (pronouns)
• Contextual Reworks / Rephrased Content. Rewrote several labels to sound more natural for French-speaking users and to be more intuitive or concise. E.g., (notez que les deux options sont nécessaires) -> (Les deux options sont requises)
  • This also includes labels edited for consistency with other labels across the entire application. E.g., Disposition en hauteur pour les moniteurs verticaux. -> Disposition en hauteur*, utile pour* les écrans verticaux.
  • I have also rewritten the descriptions of some plugins (e.g., BSPWM) to be more descriptive. I can propose my changes for the English version as well, if needed.

closes #706 #679

[LoganTann]

Fixed merge conflict due to 5dc081a

[LoganTann]

I recommend merging this PR after this one : #1188

[LoganTann]

@eythaann are there any plans to merge translations PR ?

Just to know if fixing merge conflicts gradually is worth the time, or if it's better to wait.

[eythaann]

@eythaann are there any plans to merge translations PR ?

Just to know if fixing merge conflicts gradually is worth the time, or if it's better to wait.

HIII, sorry for the late reply, currently we have another system for translations fixes, but I configured wrong, wait for updates.