2021 FR translation - A02, A03, A04, A05, A06

[nhumblot]

Hi :wave:

This PR continue the french translation with the translation of

• A02 - Cryptographic failures
• A03 - Injection
• A04 - Insecure Design
• A05 - Security Misconfiguration
• A06 - Vulnerable and Outdated Components

No sync change has been performed as there was no change on master impacting the French translation as it is already.

A small typo fix is also added on A02 English version, removing an unnecessary space.

[sslHello]

@nhumblot Hi Nicolas, thank you very much for your translation effort. Salut / Cheers Torsten