Update and improve the French translation

Description

The French translation needs to be updated and there is room for improvement on a number of strings.

Environment

None

Status

Assignee

Guillaume Smet

Reporter

Guillaume Smet

Labels

None

Feedback Requested

None

Feedback Requested By

None

backPortable

None

Suitable for new contributors

None

backportDecision

None

backportReEvaluate

None

Components

Fix versions

Priority

Trivial
Configure