Fix misleading title on account creation confirmation page (en, fr)

[PierreMesure]

References

Fixes #2943

Objectives

See issue

Visual Changes

Before:

After:

Notes

I also corrected the French version.

[decabeza]

Hi @PierreMesure,

I merged this one but also update the fr translation in Crowdin (to avoid future conflicts) 😌

For the future, for non en languages is better change keys only on Crowdin and not in the code. We have a ConsulBot who makes automatic PRs with new translations changes (like #3019) 😉