feat: sort bindings by key text within each group

[cboone]

Sort bindings alphabetically by binding text (case-sensitive) using
insertion sort in the AWK parser. Set LC_ALL=C for consistent
byte-order comparison regardless of the user's locale.

[Copilot]

Pull request overview

This PR makes the binding list output deterministic and easier to scan by sorting bindings alphabetically (byte-order, case-sensitive) within each group, and by ensuring the sort order is stable across user locales.

Changes:

• Added an insertion sort routine in scripts/parse-bindings.awk and applied it per table before emitting BIND lines.
• Ran the AWK parser under LC_ALL=C in the popup entrypoint to ensure locale-independent ordering.
• Updated scrut tests to set LC_ALL=C and to match the new sorted output order.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
tests/parse-bindings.scrut	Updates expected output order per group and forces LC_ALL=C for deterministic test results.
scripts/popup.sh	Ensures runtime parsing uses LC_ALL=C so sorting is consistent across locales.
scripts/parse-bindings.awk	Introduces per-table insertion sort and applies it before printing each group.

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[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated no new comments.