Fix: action function throws an error, asking for something to return

[pavsoldatov]

The action function on line 607, as it is, is throwing the following error:
You defined an action for route "0" but didn't return anything from your action function. Please return a value or null.

Returning a contact (as does the similar loader function) seems to solve the issue.

[changeset-bot]

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[remix-cla-bot]

Thank you for signing the Contributor License Agreement. Let's get this merged! 🥳

[timdorr]

Thanks!