Imviz: Selected data in Layers menu should follow display

[pllim]

Workflow to reproduce the problem:

1. Fire up Imviz.
2. Load 2 images.
3. Note that the second image is now shown but when you click on Layers menu, it still give you the options of the first image. As a result, when you change, say the percentile, you don't see the display changes until you blink back to the first image. This is very confusing.

Desired behavior: The selected data in Layers should reflect what is actually shown.

TODO

• Patch upstream at Layers dropdown to follow visible Data layer glue-viz/glue-jupyter#244
• If patch is accepted upstream, we need to pin to new release with that patch.

🐱

[pllim]

Was brought up again in #1428

[pllim]

@orifox brought this up again. So maybe we should bump the priority...

[kecnry]

Note that the labels in #1465 are sorted in layer order. Is this issue for the data-menu, the layer dropdowns in plugins, or both?

[pllim]

When I originally wrote this, I specifically meant the "data selected" field in the Layers menu. Now this also extends to similar field we have since added to other plugins.

I know other people also have asked for Data menu ordering but personally, I don't find that as important. (And I think it has its own JIRA ticket somewhere.)