[FIX] use the proper html template for mutli maps and label masker

[Remi-Gau]

• Closes [BUG] MultiNiftiMapsMasker reports are empty #4299

Changes proposed in this pull request:

• use the appropriate HTML templates for reports of MultiNiftiMapsMasker and MultiNiftiLabelsMasker that would otherwise use the default one.

[Remi-Gau]

Before: see #4299 (comment)

After:

[github-actions]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.13%. Comparing base (abb80ff) to head (2ef7668).
Report is 25 commits behind head on main.

Additional details and impacted files

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[bthirion]

OK, so this PR is only about the template ?

[Remi-Gau]

OK, so this PR is only about the template ?

yup, when investigating the root cause of #4299 turns out that report generation would not use the right template for the "multi" maskers and use the default one

Still not a 100% sure why this was only affecting the multimapsmasker and not also the multilabelsmasker, but I have checked the one generated for the latter and could not spot a difference before and after

we can wait till #4295 is in to do a proper check of all the maskers

[Remi-Gau]

For review

Specifically compare and check multi label / maps maskers

Before (current dev doc)

• maskers reports: https://nilearn.github.io/dev/modules/generated_reports/masker_reports_examples.html

After

• maskers reports: https://output.circle-artifacts.com/output/job/288a1f19-4ea1-46f2-8425-6f0dc605d5f4/artifacts/0/dev/modules/generated_reports/masker_reports_examples.html#nifti-labels-masker

[Remi-Gau]

Actually this DOES fix a bug I had not noticed on the MultiNiftiLabelsMaskers:

The region summary button was not displayed.

Before

After

[Remi-Gau]

Messed up the rebase. The number of line changes makes no sense.
Fixing.

[Remi-Gau]

Note that the next map and previous map button do not seem to cycle through maps when the reports are embedded in the doc. But they work fine in jupyter notebooks.

[bthirion]

LGTM, thx !