Implement further continuity after predicting a photo

[Tocrak]

In order to not break the continuity of the chatbot after predicting the dog breed on a given photo it should ask again for a topic for the user to choose.

For a better readability and consistency of the code this feature together with the predicting part should be included inside a function. Its name will be recognise_image

To do:

• [x] Create the recognise_image function