Remove unnecessary APIs and trackers

[Hoerli1337]

In my opinion, the following things should be removed from the web client, or at least made available as an opt-in option in some kind of configuration file.
As a hoster of the webclient, you should be able to decide yourself to which companies you want to give away user data or not.
Therefore it would be great if all queries could take place locally on the server first.

• API of ipdata.co => Remove, because you don't need it. Everything works without this service. uBlock Origin blocks it anyway (I blocked it myself with ScriptBlocker and Pi-Hole).
• API from ipinfo.io => Remove, because you don't need it. Everything works without this service. uBlock Origin blocks this anyway (I blocked it myself with ScriptBlocker and Pi-Hole).
• Google Tag (Track) Manager => I don't want Google tracking on my hosted platforms.
• Google as DNS server => offer other DNS servers than the ones from Google, or use the system services from the server
• Connection to con-gate.work => Maybe change it to show that it is a Teaspeak service ;)
• Call home to teaspeak.de => Maybe disable in an option, so that the client also works completely "offline" without errors