[To discuss] Add tutorial/introduction for first-time users before the hearing test

[DawidGlazik]

I suggest that, before the user's very first hearing test, we display a short tutorial or introduction. This should familiarize the user with the test process, similar to what happens during a real hearing test.

The tutorial could include:

• Example/test sounds played with corresponding labels, so the user knows what to expect.
• Instructions or tips on how and when to press the button.
• Only after the user has interacted (e.g., pressed the button a couple of times), the real test should begin.
• This would help reduce confusion and improve the reliability of the results, especially for first-time users.

[Grochman]

Agree, would definitely improve user expirence but this is a big feature. In my opinion now we should focus on audiogram descriptions as it is the last core feature that isnt ready (appart from masking sound volume which is beeing researched)