Clarification optic config

# Motivation

According to feedbacks from beta testor:
The names : Low Mag / Medium Mag / High Mag are not easy to link with specific  ( 100µm / 200µm / 500µm ) for new users.

# ToDo

Find a way to clarify, in the user interface, the association of a flow cell and the optics. For example, create a label such as 'High magnification / 100 µm', and so on. 
