feat: support collection options in nextjs publishing

[hikchoi]

feat: support collection options in nextjs publishing

This change adds support for the site configuration has_collection and related collection options to nextjs publishing.

Docs PR: https://wiki.dendron.so/notes/e4ea4fe3-0350-492e-863a-687d9fc15993.html

This implements collection options to be on par with the existing 11ty publishing and does not require documentation update.

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General

Quality Assurance

• [~]add a test for the new feature
• make sure all the existing tests pass
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Docs

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[hikchoi]

doing some clean ups and refactoring. switching back to draft.