Add a more comprehensive Error Handling for better UI/UX

[Spyros-Vl]

I am using the service a lot and one of the issues I had with users was regarding the Error handling. Usually when there is an error in the chat the users will get a general message of "Something went wrong with your request please reload the page or try a new chat". The users cant always understand what the issue is for instance you will get this error if you trigger the content filters, if the model cant be reached because of an invalided token or when the requests per minute have been maxed.

My request is if we can inform the user better about the error that they experience. For instance if a content filter is triggered they should get a message about it so that they can change the prompt else they might think that there is something wrong with the service and continue trying with the same prompt. The responses from the APIs could be utilized and based on them the user could get a custom message.