Feature: Add basic progress indicator & activity info

[psobolewskiPhD]

This is a basic attempt at addressing #27
and showing some status/busy info the napari gui.
The potentially long running tasks will now show an indicator that something is happening (the neato moving boxes in the lower right)
Additionally, a notification is provided of the main tasks after click run: (down)loading models and running segmentation

cc: @kandarpksk

[codecov-commenter]

Codecov Report

Merging #33 (4e1ba9e) into main (6993bee) will decrease coverage by 0.34%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##             main      #33      +/-   ##
==========================================
- Coverage   59.91%   59.57%   -0.34%     
==========================================
  Files           3        3              
  Lines         232      235       +3     
==========================================
+ Hits          139      140       +1     
- Misses         93       95       +2     

Impacted Files	Coverage Δ
cellpose_napari/_dock_widget.py	53.06% <66.66%> (-0.31%)	⬇️

[psobolewskiPhD]

Test fails seem to be due to: napari/napari#4747 (comment)
Maybe should just drop python 3.7 tests? and add linux?

[tlambert03]

Maybe should just drop python 3.7 tests? and add linux?

I can't see the direct connection to the importlib-metadata issue mentioned in that comment, but yes, if we're not explicitly pinning the napari dependency here to v0.14.4 (the last one to support 3.7), then i wouldn't expect any tests to work on 3.7. go ahead and drop

[psobolewskiPhD]

Hi @tlambert03 the python 3.7 tests are actually running in napari 0.4.14, but failing due to the importlib_metadata issue. Anyhow, I will make a separate PR to try to try to drop 3.7 and add linux? I can probably copy-pasta from the cookiecutter 😉

[psobolewskiPhD]

Hmm, so now it's the same symptom as napari-serialcellpose with macOS tests stalling:
guiwitz/napari-serialcellpose#8
Not sure why simply adding progress=True would do that...

Edit: The tests hang for my locally too, even though everything works when run in napari, so it's something related to qtbot/pytest-qt?