Integrate the sorting information into the Heatmap

[Alexander-Dubrawski]

Is your feature request related to a problem? Please describe:
To get the sorting information inside the segment access Heatmap we need to click a button to switch between encoding and sorting order.

Please describe the solution you'd like:
It would be a visual improvement to see the sorting information directly in the cell. E.g. an arrow in each cell to denote "sorted". As a result one heatmap map should be sufficient (no click on the button to switch would be needed).

Additional context:
It could look as followed:

ImprovedHeatmap.pdf