[Doxygen] Logging (#6399)

* [Doxygen] Logging

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* [Doxygen] Newline.

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* [Doxygen] Add another example.

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* [Doxygen] \note and \warning

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Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>

cockatrice/resources/config/qtlogging.ini

@@ -1,6 +1,10 @@
 [Rules]
 # The default log level is info
 *.debug = false
+#*.info = true
+#*.warning = true
+#*.critical = true
+#*.fatal = true
 
 # Uncomment a rule to see debug level logs for that category,
 # or set <category> = false to disable logging