Use params.text_size in _show_geojson

[k034b363]

Describe your changes
The helper function _show_geojson uses a hard-coded text size for displaying plot labels on debugs. This PR updates it to pull PlantCV's params.text_size instead.

Type of update

• New feature or feature enhancement

Associated issues
Closes #130

For the reviewer
See this page for instructions on how to review the pull request.

• PR functionality reviewed in a Jupyter Notebook
• All tests pass
• Test coverage remains 100%
• Documentation tested
• New documentation pages added to plantcv-geospatial/mkdocs.yml
• Changes to function input/output signatures added to changelog.md
• Code reviewed
• PR approved

[deepsource-io]

DeepSource Code Review

We reviewed changes in 9a9bf32...263261b on this pull request. Below is the summary for the review, and you can see the individual issues we found as inline review comments.

See full review on DeepSource ↗

PR Report Card

Overall Grade

Security   Reliability   Complexity   Hygiene   Coverage

Code Review Summary

Analyzer	Status	Updated (UTC)	Details
Python		Apr 29, 2026 1:37p.m.	Review ↗
Code coverage		Apr 29, 2026 1:40p.m.	Review ↗

Code Coverage Summary

Language	Line Coverage (New Code)	Line Coverage (Overall)
Aggregate	100%	100%
Python	100%	100%

➟ Additional coverage metrics may have been reported. See full coverage report ↗

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