Allow cubeviz image viewer to display coords for 2D data

[javerbukh]

Description

This pull request is to address the cubeviz coords display failing for 2D data in the image viewer.

This is a direct follow-up of #1315

Checklist for package maintainer(s)

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• Are two approvals required? Branch protection rule does not check for the second approval. If a second approval is not necessary, please apply the trivial label.
• Do the proposed changes actually accomplish desired goals? Also manually run the affected example notebooks, if necessary.
• Do the proposed changes follow the STScI Style Guides?
• Are tests added/updated as required? If so, do they follow the STScI Style Guides? N/A
• Are docs added/updated as required? If so, do they follow the STScI Style Guides?
• Did the CI pass? If not, are the failures related?
• Is a change log needed? If yes, is it added to CHANGES.rst?
• Is a milestone set?
• After merge, any internal documentations need updating (e.g., JIRA, Innerspace)?

[codecov]

Codecov Report

Merging #1326 (ce25f7f) into main (bfa615e) will decrease coverage by 0.19%.
The diff coverage is 60.00%.

@@            Coverage Diff             @@
##             main    #1326      +/-   ##
==========================================
- Coverage   83.92%   83.73%   -0.20%     
==========================================
  Files          91       91              
  Lines        7622     7754     +132     
==========================================
+ Hits         6397     6493      +96     
- Misses       1225     1261      +36     

Impacted Files	Coverage Δ
jdaviz/configs/cubeviz/plugins/viewers.py	85.41% <60.00%> (-1.69%)	⬇️
...s/default/plugins/model_fitting/fitting_backend.py	77.90% <0.00%> (-15.12%)	⬇️
...configs/default/plugins/data_tools/file_chooser.py	65.71% <0.00%> (-3.43%)	⬇️
jdaviz/configs/imviz/plugins/tools.py	42.74% <0.00%> (-1.92%)	⬇️
jdaviz/configs/specviz/plugins/viewers.py	83.07% <0.00%> (+0.13%)	⬆️
jdaviz/core/marks.py	89.78% <0.00%> (+5.85%)	⬆️

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[pllim]

Actually, I think this might be correct, at least X and Y seems sensible when I tested with the data from here:

jdaviz/jdaviz/configs/cubeviz/plugins/tests/test_parsers.py

Line 10 in 3516b14

def image_hdu_obj():

If we see weird behavior due to WCS swapping in some other data, we can deal with it later. Thanks for fixing my bug!