feat(rgpd/cgu): everything is ready

• Full handling of RGPD/CGU validation
• management command to clean user personnal data created
• Added RGPD and CGU as markdown in the documentation (also used in the front)

Front:

• Multiple entrypoints for the different needs
• Added raw file loader
• bumped frontend image version
• More generic front template (for the multiple entries)
• Added NotFound Component
• More generic Markdown component (in regards to handling off-the-api situations and heading size)

Closes #67 (closed)