Remove comma-dangle

[cseas]

typescript-eslint strongly recommends against using the "comma-dangle" rule:
https://typescript-eslint.io/rules/comma-dangle/

Since it is part of the original airbnb config, maybe we should just let the eslint one stay as it is instead and remove the override with the equivalent typescript-eslint rule.

[Kenneth-Sills]

Yup! With #354, since the Typescript rule was outright removed, this rule is being migrated to ESLint Stylistic. Once the upstream Airbnb config is updated, the override will be removed entirely.