Fixing dayjs imports, use composition API in NavSearchForm

[stephiescastle]

Checklist

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Description

Dayjs was never fully fixed and throwing errors in BaseTimer.

This PR also converts NavSearchForm to use the composition API.

Instructions to test

1. use this branch locally with the www repo
2. load a mission detail page
3. there should be no js errors

Tested in the following environments/browsers:

Operating System

• macOS
• iOS
• iPadOS
• Windows

Browser

• Chrome
• Firefox ESR
• Firefox
• Safari
• Edge