Daily dose of eslint fixes

[osteele]

Required

Changes must conform to these requirements:

• [x] yarn test passes. All new and existing tests pass.
• [x] yarn lint passes. All new code follows the code style of this project.

Aspirational

We don't yet require these, but they are nice to have:

• [ ] New code is covered by new or existing tests.
• [ ] Changed code is covered by new or existing tests.

[coveralls]

Pull Request Test Coverage Report for Build 293

• 3 of 28 (10.71%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 21.862%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/components/menu-icon-button.jsx	0	1	0.0%
src/pages/add-edit/add-edit-page.jsx	1	9	11.11%
src/components/date-time-selector.jsx	2	18	11.11%
<!--	Total:	3	28	10.71%	-->

Totals
Change from base Build 291:	0.0%
Covered Lines:	92
Relevant Lines:	447

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💛 - Coveralls