FIX] fixes several plotting details in glm reports

[Remi-Gau]

• Closes Misc issues in Nistats reports #2405

Changes proposed in this pull request:

• only display FIR delay if FIR is used
• make sure the run number does not overlap with the design matrix also only display it if there is more then one run
• change number of significant figure in parameters for thresholding to make sure default alpha is properly displayed and use scientific notation for very small alphas
• add "z-score" next to color bar
  • handle black background
• for plot_type="slice"
  • use symmetric blue to white colormap when data has both positive and negative values
  • use "red_transparent_full_alpha_range" colormap when data only has positive values
  • use "blue_transparent_full_alpha_range" colormap when data only has negative values
• use a proper color map for glass brain

[github-actions]

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[Remi-Gau]

Run number next to design matrices

[Remi-Gau]

Add unit to color bar

[codecov]

Codecov Report

Attention: Patch coverage is 62.96296% with 10 lines in your changes are missing coverage. Please review.

Project coverage is 92.04%. Comparing base (abb80ff) to head (7ed968a).
Report is 16 commits behind head on main.

Files	Patch %	Lines
nilearn/reporting/glm_reporter.py	62.96%	6 Missing and 4 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4266      +/-   ##
==========================================
+ Coverage   91.85%   92.04%   +0.19%     
==========================================
  Files         144      143       -1     
  Lines       16419    16438      +19     
  Branches     3434     3445      +11     
==========================================
+ Hits        15082    15131      +49     
+ Misses        792      764      -28     
+ Partials      545      543       -2     

Flag	Coverage Δ
macos-latest_3.10_test_plotting	91.92% <62.96%> (?)
macos-latest_3.11_test_plotting	91.92% <62.96%> (+0.06%)	⬆️
macos-latest_3.12_test_plotting	91.92% <62.96%> (?)
macos-latest_3.9_test_plotting	91.88% <62.96%> (?)
ubuntu-latest_3.10_test_plotting	91.92% <62.96%> (+0.06%)	⬆️
ubuntu-latest_3.11_test_plotting	91.92% <62.96%> (?)
ubuntu-latest_3.12_test_plotting	91.92% <62.96%> (?)
ubuntu-latest_3.12_test_pre	91.92% <62.96%> (?)
ubuntu-latest_3.8_test_plot_min	91.63% <62.96%> (?)
ubuntu-latest_3.8_test_plotting	91.88% <62.96%> (?)
ubuntu-latest_3.9_test_plotting	91.88% <62.96%> (?)
windows-latest_3.10_test_plotting	91.89% <62.96%> (?)
windows-latest_3.11_test_plotting	91.89% <62.96%> (?)
windows-latest_3.12_test_plotting	91.89% <62.96%> (?)
windows-latest_3.8_test_plotting	91.85% <62.96%> (?)
windows-latest_3.9_test_plotting	91.86% <62.96%> (?)

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[Remi-Gau]

Note: consider doing the colormap modifications in a separate PR as the default choice may require a proper discussion.

[Remi-Gau]

Note: review and visualizing the outcome would be easier if #2194 (comment) was addressed first

[Remi-Gau]

• blocked by [DOC] render reports in the documentation #4267

[Remi-Gau]

Requested a full build to compare to the GLM reports before and after.

Will post the links once the builds are done.

[Remi-Gau]

To compare:

GLM reports before: https://nilearn.github.io/dev/modules/generated_reports/glm_reports_examples.html

GLM reports after: https://output.circle-artifacts.com/output/job/72355410-f50c-4f00-86ef-fa4c2b967fbc/artifacts/0/dev/modules/generated_reports/glm_reports_examples.html

[bthirion]

LGTM.