Bug/gpt response compact (#994)

* refactor question builder for gpt feature
* removing logic that prepends all applied tags to question builder
* passing first tag as context to gptservice
* setting context before sending the question

* refactoring setup message

* improving context

* refactoring context for more appropriate responses

* get matching tag or default for context

* sending instructions along with question, instead of setup

* prompt for shorter responses

* values responsible for tweaking AI responses are not declared as constants, docs are also added for such values

Author: ankitsmt211

application/src/main/java/org/togetherjava/tjbot/features/help/HelpSystemHelper.java

@@ -129,7 +129,6 @@ RestAction<Message> constructChatGptAttempt(ThreadChannel threadChannel,
 
         String context = matchingTag.getName();
         chatGPTAnswer = chatGptService.ask(question, context);
-
         if (chatGPTAnswer.isEmpty()) {
             return useChatGptFallbackMessage(threadChannel);
         }