Add migration to index all projects

What does this MR do and why?

Add migration to reindex all projects, this will populate all project documents into the index

Space required

Yes, enough space. See update at #428079 (comment 1800026099)

Migration run time

Approximately 3 hours, but I wonder if it will take longer. See details at #428079 (comment 1800026099)

MR acceptance checklist

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Screenshots or screen recordings

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Before	After

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

Related to #428079 (closed)