Add solutions for failed queries due to field type issues.

[JakePT]

Description of the Change

Adds recommended solution messages to 2 failed queries described by #3164.

Closes #3164

How to test the Change

1. Run wp elasticpress delete-index
2. Go to Posts > All Posts, select a post.
3. Make a change to the post and click Update.
4. Visit the latest posts page, with a search block/widget on it. Search for the edited post.
5. Visit ElasticPress > Status Report in the admin.
6. The failed queries in the Status Report should offer a solution that begins "It seems you saved a post without doing a full sync first...".

Changelog Entry

Append to

Added - New Status Report page.

Credits

Props @JakePT

Checklist:

• I agree to follow this project's Code of Conduct.
• I have updated the documentation accordingly.
• I have added tests to cover my change.
• All new and existing tests pass.