feat: added a frontmatter reporting step to algolia indexing

[dmitrymatio]

Description

Added a reporting step to pass/fail pages based on frontmatter completion.

Currently checking for title, description, keywords as they're the essential for search results.

Related Issue

Motivation and Context

How Has This Been Tested?

Tested example locally as part of the console only index run with no indices sent to algolia.

Screenshots (if appropriate):

Example of starting and fail messages

Example of pass message

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.