feat: include pages based on a tag

[byronwilliams]

Change Summary

• Include pages for a collection by the use of a tag selector

PR Checklist

• I have read and signed the Contributor License Agreement.

[jasonbosco]

The word includeTags almost makes it sound like these are the only tags that will be indexed by the plugin. How about calling it something like includePagesWithTags.

Also, I know the tag name here is just an example, but it makes it sound like it configures the Typesense Collection that the page is indexed to. How about we have the example as:

includePagesWithTags: {"data-typesense-include-page": "product"}