Fix ESLint Issues

Problem/Motivation

Follow up issue from #3377065: Convert to GitlabCI; this issue introduced GitlabCI, and ran automated fixing of some ESLint, but deferred fixing the ESLint issues requiring manual fixes.

This issue is to remedy the remaining ESLint issues and restore

Steps to reproduce

Run ESLint against the module.

Proposed resolution

Fix the ESLint issues.
Remove

SKIP_ESLINT: '1'

from .gitlab-ci.yml

Remaining tasks

All the things.

User interface changes

None.

API changes

None.

Data model changes

None.