- Bug fixes and improvements

Bugs fixes.
Improved interactions in the simulations.

- Introducing a NEW pathology focus on aortic stenosis
- Practice auscultating (or listening) with a NEW simulation and learn to identify normal and abnormal heart sounds
- Experience in incredible 3D how aortic stenosis presents & its symptoms, causes, its impact on the heart, and risk factors
- Empower yourself with key clinical knowledge on typical and atypical symptoms

Bugs fixes

* Introducing a NEW pathology focus on myocardial infarction, with a spotlight on women's health
* Experience in incredible 3D how myocardial infarction presents & its symptoms, its impact on the heart, affected arteries, causes, and risk factors
* Empower yourself with key clinical knowledge on typical and atypical symptoms
* Bug fixes & usability improvements, including model placing and orientation

* bugs fixes;
* model facing the user when repositioned;
* improved 3D model rotation gesture;

User experience improvements and bugs fixes.

* updated icon;
* improvements to the UI;
* bugs fixes in the simulation flow;
* improvements to the gestures;