[Merged by Bors] - chore(MeasureTheory/Measure/MeasureSpace): reduce privateInPublic

[Komyyy]

---

[github-actions]

PR summary 63868fe5ba

Import changes for modified files

No significant changes to the import graph

Import changes for all files

Files	Import difference

---

Declarations diff

No declarations were harmed in the making of this PR! 🐙

You can run this locally as follows

## summary with just the declaration names:
./scripts/pr_summary/declarations_diff.sh <optional_commit>

## more verbose report:
./scripts/pr_summary/declarations_diff.sh long <optional_commit>

The doc-module for scripts/pr_summary/declarations_diff.sh contains some details about this script.

---

Decrease in tech debt: (relative, absolute) = (1.68, 0.01)

Current number	Change	Type
806	-3	backward.privateInPublic
415	-1	backward.privateInPublic.warn

Current commit 78b7c00d4d
Reference commit 63868fe5ba

You can run this locally as

./scripts/reporting/technical-debt-metrics.sh pr_summary

• The relative value is the weighted sum of the differences with weight given by the inverse of the current value of the statistic.
• The absolute value is the relative value divided by the total sum of the inverses of the current values (i.e. the weighted average of the differences).

[JovanGerb]

maintainer merge

[github-actions]

🚀 Pull request has been placed on the maintainer queue by JovanGerb.

[sgouezel]

bors r+

[mathlib-bors]

Pull request successfully merged into master.

Build succeeded:

• ci (staging) / Build
• ci (staging) / Lint style
• ci (staging) / Post-Build Step
• ci (staging) / Post-CI job