Display local timezones for list of eCRs (homepage)

[angelathe]

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Action Requested

• In the list of eCRs on the homepage, the Stored Date column should display the user's local timezone (currently UTC).
• From Sarah: "I'm thinking for the Philly use case, especially if we're just showing when it was stored, they'll want to see their own timezone."

Acceptance Criteria

• The Stored Date column displays user's local timezone rather than UTC.

Additional Information

• Currently, it shows UTC because the date is formatted using formatDateTime (see #1678). This would likely require making a different format function (& related tests) to display user's local TZ.