Update the Viewer tutorial with new icons

[psobolewskiPhD]

🧰 Task

There have been small changes to Viewer buttons, to emphasize that they can be right-clicked.
napari/napari#7556
napari/napari#7580
I think there is also a plan to swap the 2D/3D icons to make what happens when you click clearer.

Once this overhaul is finished, the Viewer tutorial should be updated with the new icons and a line of copy that the tick mark means you can right-click.

[psobolewskiPhD]

cc: @TimMonko
(not saying you have to do this, but wanted to flag you for your thoughts!)

[TimMonko]

I was sitting in lab meeting yesterday in lab meeting distracted by this very idea. So, I could take a swing at it as long as it can wait until after Feb 12. I'll try to have it ready a few days before 0.6.0 (btw, ETA?, milestone is Feb 11 which seems rather soon)

Also planning to figure out how to style an indicator for dim sliders / playback, coming soon. Would be nice if I could get all that in before 0.6.0 and any other UI icon changes since those seem to be going over pretty well.

Should viewer_pan_zoom.webm also be updated? looks to be a fairly old napari. I'm not sure how to make webms, but I am able to make mp4s with ShareX -- anyone have advice?

I love how nbscreenshot works so smoothly in docs to show changes through the version switcher. 😄

[TimMonko]

See: https://github.com/TheJacksonLaboratory/activelearning/blob/main/docs/tutorials/cellpose_tutorial.qmd
For updating viewer screenshots with drawings on them automagically