chore: fix EditorConfig lint errors (issue #8725)

[opbot-xd]

Replace tab indentation with 2-space indentation to comply with EditorConfig rules for JSON files.

Ref: https://github.com/stdlib-js/stdlib/actions/runs/19877531485

---

type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:

• task: lint_filenames status: passed
• task: lint_editorconfig status: passed
• task: lint_markdown status: na
• task: lint_package_json status: na
• task: lint_repl_help status: na
• task: lint_javascript_src status: na
• task: lint_javascript_cli status: na
• task: lint_javascript_examples status: na
• task: lint_javascript_tests status: na
• task: lint_javascript_benchmarks status: na
• task: lint_python status: na
• task: lint_r status: na
• task: lint_c_src status: na
• task: lint_c_examples status: na
• task: lint_c_benchmarks status: na
• task: lint_c_tests_fixtures status: na
• task: lint_shell status: na
• task: lint_typescript_declarations status: passed
• task: lint_license_headers status: passed

---

Resolves #8725.

Description

What is the purpose of this pull request?

This pull request:

• fixes an EditorConfig linting error in lib/node_modules/@stdlib/plot/base/ctor/lib/props/viewer/viewers.json by replacing tab indentation with 2-space indentation to comply with the project's EditorConfig rules for JSON files.

Related Issues

Does this pull request have any related issues?

This pull request has the following related issues:

• Fix EditorConfig lint errors #8725

Questions

Any questions for reviewers of this pull request?

No.

Other

Any other information relevant to this pull request? This may include screenshots, references, and/or implementation notes.

No.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

AI Assistance

When authoring the changes proposed in this PR, did you use any kind of AI assistance?

• Yes
• No

If you answered "yes" above, how did you use AI assistance?

• Code generation (e.g., when writing an implementation or fixing a bug)
• Test/benchmark generation
• Documentation (including examples)
• Research and understanding

Disclosure

If you answered "yes" to using AI assistance, please provide a short disclosure indicating how you used AI assistance. This helps reviewers determine how much scrutiny to apply when reviewing your contribution. Example disclosures: "This PR was written primarily by Claude Code." or "I consulted ChatGPT to understand the codebase, but the proposed changes were fully authored manually by myself.".

I used GitHub Copilot to identify the EditorConfig issue.

---

@stdlib-js/reviewers

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[opbot-xd]

The CI test failure is not caused by this PR.

The test coverage workflow is detecting the changed file's directory (lib/node_modules/@stdlib/plot/base/ctor/lib/props/viewer) and attempting to run JavaScript tests on it. However, this is a sub-directory containing only a JSON configuration file and helper scripts—not a testable package.

Verification:

• make lint-editorconfig-files passes locally
• The JSON file now uses 2-space indentation as required by .editorconfig
• The change is purely a whitespace fix (tabs → spaces)

The actual package is @stdlib/plot/base/ctor, and this PR does not modify any JavaScript code or tests.

cc @stdlib-js/reviewers

[kgryte]

@opbot-xd Thanks for flagging. Yes, the CI failure is not due to changes in this PR. As such, we can go ahead and merge.

[kgryte]

Thank you for your contribution and congratulations on your first PR!