Layers main icons should show current state

[Robbie1977]

Please give details of the issue:

The eye on the Layers tools should show the current state so the eye when visible and crossed out when not visible

Support info:
Thu Feb 16 2023 14:31:12 GMT+0000 (Greenwich Mean Time)
Chrome
109.0.0.0 [1920,1000]
https://v2.virtualflybrain.org/org.geppetto.frontend/geppetto?id=VFB_00102107&i=VFB_00101567,VFB_00102107

[admclachlan]

The eye is in Term Info, Layers and Template ROI Browser (poss more?).
In Term Info and Template ROI Browser it is a toggle button, the icon reflects the current state.
In Layers it it is not a toggle button itself and the user must go to the dropdown and then click show/hide. The icon does not reflect the current state but instead the state it will be in after toggling.

I think it would be much clearer if all eye symbols reflected the current state. The only place the opposite makes sense is in the layers drop down menu (not the eye next to the drop down but the one in it), as this is showing what selecting hide or show will do, not the current state.