Fixes: #18568 Update mkdocstrings and adapt config (#18841)

* Fixes: #18568 Update mkdocstrings and adapt config

* Fixed some output formatting errors

When trying to compare the output from "mkdocstrings[python-legacy]==0.27.0" and
"mkdocstrings[python]==0.28.2" I encountered some HTML errors:
- <div> inside a <p>
- unescaped non-tags <pk>

docs/integrations/graphql-api.md

@@ -60,6 +60,7 @@ query {
   }
 }
 ```
+
 In addition, filtering can be done on list of related objects as shown in the following query:
 
 ```
@@ -98,8 +99,8 @@ Certain queries can return multiple types of objects, for example cable terminat
       }
     }
 }
-
 ```
+
 The field "class_type" is an easy way to distinguish what type of object it is when viewing the returned data, or when filtering.  It contains the class name, for example "CircuitTermination" or "ConsoleServerPort".
 
 ## Authentication