Add JS tests coverage for reporting-dates-tables.js

[johnnyporkchops]

Summary

Write automated JS tests for:
Dom elements:
zebra striping, footnote/header note rendering, footnot/header note lists rendering
UI interactions:
footnotes, header notes, states-dropdown

Related Issue/PR:

#5786

Completion criteria

• Passing automated tests are written for reporting_dates_tables.js

Tech steps or considerations (optional)

List any considerations the tech team should know. Additionally, any specific tech steps can be included here.

• First
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Future work

Other future work that may be needed following this issue's completion.