chore: fix EditorConfig lint errors (issue #12184)

[algojogacor]

Summary

Fixes EditorConfig lint errors in lib/node_modules/@stdlib/ndarray/base/slice-assign/examples/index.js where lines 78-94 used spaces instead of tabs for indentation.

Root Cause

The comment block at lines 78-94 (a multi-line array example output) used 2-space indentation instead of the project's tab-based indentation standard. The automated EditorConfig lint workflow detected this as a formatting error.

Changes

• lib/node_modules/@stdlib/ndarray/base/slice-assign/examples/index.js: Converted 2-space indentation to tabs on lines 78-94 (+17 -17, no semantic changes)

Testing

• Verified only whitespace characters changed — content is identical
• File parses as valid JavaScript
• Diff shows only tab/space conversion in the affected comment block

Related Issues

Resolves #12184

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[kgryte]

@algojogacor You need to follow the instructions stated in #12191 (comment).