chore: Remove LinkProperties from PageHeader in favor of VedaUIProvider

[sandrahoang686]

Related Ticket: #1381
Related PRs: developmentseed/next-veda-ui#36

Description of Changes

• Removed LinkProperties prop from PageHeader and down the tree.
• Abstracted VedaUIProvider wrapper out so it can also wrap around tests
• Updated tests

Notes & Questions About Changes

{Add additonal notes and outstanding questions here related to changes in this pull request}

Validation / Testing

• Make sure pageheader navigation is working as expected

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[vgeorge]

@sandrahoang686 the page navigation seems to be working well. I would suggest using a more descriptive name for the wrapper, like VedaUIConfigProvider. Alternatively, we could move it to the test/utils.js file as an exclusive wrapper for tests with an skeleton config to ensure no environment variables are passed to the tests unless we explicitly want them to be.