TinyMCE5: add GDPR/DSGVO Reminder

[manu37]

Set a reminder at config CDN switch and documentation: When using CDN you fetch from a foreign server and leave personal data (IP address) there. On the long term you have to register at tiny.cloud anyway. https://cmsimpleforum.com/viewtopic.php?f=16&t=18239&start=10#p82586

[cmb69]

Yeah, we should definitely document this, especially for the case where the editors are used by plugins and made available to non adminstrators. However, there are more cases where external requests are made, and we need to document these as well. At least hi_updatecheck comes to mind, which requests files from whereever the plugins choose to store their version.nfo (and from cmsimple-xh.org for the core). Are there more such cases?

[olape-git]

especially for the case where the editors are used by plugins and made available to non adminstrators.

Yes, for this case that would probably be important

At least hi_updatecheck comes to mind, which requests files from whereever the plugins choose to store their version.nfo (and from cmsimple-xh.org for the core).

But in this case it is usually not personal data, it is the IP of the server. On the other hand, in case of home/local installation, it is the personal IP.