v1.68, add administration API protection, various fixes

[tituspijean]

PR Status

• [x] Code finished and ready to be reviewed/tested
• [ ] The fix/enhancement were manually tested (if applicable)

Automatic tests

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[tituspijean]

!testme

[yunohost-bot]

:v:

[Josue-T]

Maybe we should just completely open the _synapse url as we also have an issue with the password reset cf #340.

[tituspijean]

As you prefer! :)

[Josue-T]

I think as it's an API it should not be a security issue to open completely this path.

[Josue-T]

!testme

[yunohost-bot]

Fingers crossed!

[Josue-T]

Well, I'm seeing now that there are missing here some important part. The nginx config !!!