Release/i18n

Closes #678 (closed)

Includes:

• i18n of Hubl (french files only)
• i18 of component Directory & component Job Board (french files only)

Depends on !227 (merged) which should be merged before

French locale file: https://git.startinblox.com/applications/hubl/blob/release/i18n/src/locales/fr.json