Added BoltAI & PDF Pals

[longseespace]

Types of Changes

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• New addition to list
• Fixing bug in existing item in list
• Removing item from list
• Changing structure (organization) of list

Proposed Changes

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1. If you're adding something to the list, be sure to explain why it should be added.

BoltAI and PDF Pals are 2 native AI apps that does not charge a subscription. It's developed with great attention to details and follow the strict UI/UX of a native mac app.

PR Checklist

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• I have read the CONTRIBUTING guide
• I have explained why this PR is important
• I have added necessary documentation (if appropriate)