Response message unification

[Gregor7008]

1. Make private messages not embedded. Could be done within a different formatting within LanguageEngine - So new method with a String being returned.
2. Instead of a summary of the description as the title of the response embed, rather use an actual title. So replace "Choose server:" with "Server selection:"

💡 Point 2 would only be a matter of looking through the language files and rewriting them!