fix: search relevance by using one big query (properly sets total_doc…

[tiller1010]

https://werkbotstudios.teamwork.com/app/tasks/39608949
https://werkbotstudios.teamwork.com/app/tasks/39602444

Summary

• Fix search relevance by running run() once, with one large query. This prevents the total_documents from being set to 0, which messes with the docScores.
• Updated insertIndex and updateIndex to use the same searchable content as the initial index query. Keeps the searchable content consistent when publishing/saving a searchable object
• Added description to search index task
• Increased the steps of the search indexer engine, that way all rows are processed
• Set mark text color to black, that way keywords in the results are visible.

Testing Steps

• test with any compatible site
• confirm all rows are processed
• confirm the search relevance is improved
• confirm the updated and new searchable records work well after saving/publishing

Git Flow

• DO NOT delete "release/*" or "hotfix/*" branches after merging a PR. These are used to publish the next release, and they are deleted automatically.
• "Squash and merge" is good on "feature/*" into "develop"
• "Create a merge commit" is good on "release/*" or "hotfix/*" into "main"

[aletail]

This worked really well!