[GUI] Rename Marker #33
Description
Currently, there is no possibility to name or rename markers. They are automatically labeled as Marker 1, Marker 2, Marker 3, etc. in ascending order. Other shapes (e.g., polygons) are all given the same generic name without numbering.
It would be useful to add the ability to assign custom names to markers, since they are crucial for tasks such as origin selection. Additionally, we might discuss whether it is beneficial to also allow unique names for shapes (e.g., polygons) in the GUI.