Bump mlp; Update font script, fonts

[imnasnainaec]

Devin: https://app.devin.ai/review/sillsdev/TheCombine/pull/4308

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This change is 

Summary by CodeRabbit

Release Notes

• New Features

  • Expanded font family coverage including enhanced support for diverse scripts and non-Latin writing systems.

• Chores

  • Updated language picker dependency to version 2.7.5 and refreshed license documentation.

• Improvements

  • Enhanced font validation to ensure all selected fonts have valid download sources.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 1eb1718c-5100-4d56-b6e3-f2a66e22dbc8

📥 Commits

Reviewing files that changed from the base of the PR and between 73276b6 and 6969dda.

📒 Files selected for processing (2)

• maintenance/scripts/get_fonts.py
• scripts/get_fonts_dev.py

📝 Walkthrough

Walkthrough

Upgrades the mui-language-picker dependency from 2.6.1 to 2.7.5, updates the corresponding license entry, regenerates the font-family list with expanded and renamed entries, rewrites the --update script to parse scriptFontIndex.js as JSON via families.json, and tightens check_font_info to reject fonts whose default file lacks a download URL.

Changes

mui-language-picker 2.7.5 upgrade and font tooling

Layer / File(s)	Summary
Dependency version bump and license update package.json, docs/user_guide/assets/licenses/frontend_licenses.txt	Bumps the mui-language-picker constraint from ~2.6.1 to ~2.7.5 and updates the license entry version and copyright year range accordingly.
Expanded font family list maintenance/scripts/mui_language_picker_fonts.txt	Regenerates the picker font list: adds non-Noto families, renames BJCree UNI → BJCree, Gentium Plus → Gentium/Gentium Book, corrects Noto Sans SignWriting → Noto Sans Sign Writing, and adds many new Noto Sans/Serif script variants throughout the file.
Font-list update script and download validation scripts/get_fonts_dev.py, maintenance/scripts/get_fonts.py	Rewrites --update in get_fonts_dev.py to parse scriptFontIndex.js as JSON, extract slugs, map through families.json, warn on missing slugs, sort output, and fix the downstream flag from -f to -u. Adds URL presence check in check_font_info in get_fonts.py.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• sillsdev/TheCombine#4141: Performs the same mui-language-picker version bump in package.json and frontend_licenses.txt, making it a direct predecessor to this PR's upgrade.

Suggested labels

🟥High

Suggested reviewers

• jasonleenaylor

🐇 A hop through the font list today,
New families added along the way!
Ruwudu, Akatab, all sorted just right,
The picker now shines with expanded Unicode light.
Version bumped, slugs mapped, warnings in place —
This rabbit approves of the upgrade's grace! 🎉

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 inconclusive)

Check name	Status	Explanation	Resolution
Title check	❓ Inconclusive	The title 'Bump mlp; Update font script, fonts' is vague and uses abbreviated terminology that doesn't clearly convey the scope or purpose of the changes.	Consider a more descriptive title such as 'Update mui-language-picker to 2.7.5 and refactor font handling scripts' to clearly indicate the main objectives.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch bump-mlp

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.96%. Comparing base (69403c1) to head (6969dda).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4308   +/-   ##
=======================================
  Coverage   75.96%   75.96%           
=======================================
  Files         305      305           
  Lines       11384    11384           
  Branches     1411     1411           
=======================================
  Hits         8648     8648           
  Misses       2332     2332           
  Partials      404      404           

Flag	Coverage Δ
backend	87.22% <ø> (ø)
frontend	66.88% <ø> (ø)

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[jasonleenaylor]

@jasonleenaylor partially reviewed 6 files and made 1 comment.
Reviewable status: 5 of 6 files reviewed, all discussions resolved (waiting on imnasnainaec).

[imnasnainaec]

@imnasnainaec reviewed 1 file and all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on imnasnainaec).