luci-theme-bootstrap: fix hidden down arrow on submenus for accessibility - #8880

Checking PR #8880: luci-theme-bootstrap: fix hidden down arrow on submenus for accessibility (Formalities Audit)

✅ Pull request originates from a dedicated feature branch (a11y-submenus)

Commit dab4535 - luci-theme-bootstrap: fix hidden down arrow on submenus for accessibility:

✅ Author and committer identities are valid
✅ Commit is not a merge commit
✅ Commit subject layout and length are valid: "luci-theme-bootstrap: fix hidden down arrow on submenus for accessibility"
✅ Commit description lines adhere to width formatting rules
✅ Commit contains a valid 'Signed-off-by:' line matching author or committer
⚠️ Warning: Subject line exceeds soft limit (73/60 chars)
⚠️ Warning: Commit is unsigned or cryptographic signature verification failed (Reason: unsigned). Signing commits is a recommended best practice for verifying identity, but is not mandatory.