Develop intuition for messages that start with /<something>

[lumpidu]

Rasa interprets /<something>{"Entity1":"value1", ...} as a direct call to an intent with name <something> and passing parameters as entities. This is how buttons are implemented. This also completely bypasses NLU.

We should not simply pass on all direct intent calls, but make the following configurable:

• thumbs up/down intent name, e.g. /feedback{...} as mentioned in https://github.com/SDiFI/webchat/issues/16#issuecomment-1513343047. This reaction of the user needs to be captured by Masdif for marking the last message status
• forward thumbs up/down feedback to Rasa: setting if the feedback should simply be recorded or if Rasa should also directly be able to reply
• list of restricted intents, that cannot be directly triggered by buttons / manually via "/"