- Enable `unicorn/better-dom-traversing` and switch the flagged
`.children[0]` / `.childNodes[0]` accesses to `.firstElementChild` /
`.firstChild`.
- Remove the obsolete `eslint-plugin-no-use-extend-native` type stub; it is
no longer a dependency.
- Drop misleading comments on `no-thenable` (enabled here, not disabled) and
`try-complexity`.
Assisted-by: claude-code:opus-4.8