[bat] Make `#region` folding markers case-insensitive for `REM` (#317784)

* Initial plan

* [bat] Make folding markers case-insensitive for REM

Co-authored-by: aeschli <6461412+aeschli@users.noreply.github.com>

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: aeschli <6461412+aeschli@users.noreply.github.com>

Copilot committed 14d ago

b9b2d90c2d66f29b953f9697d024fc3cf91d4a40

Parent: 1262163

Committed by GitHub <noreply@github.com> on 6/1/2026, 1:45:57 PM