[fix] Update status with API

[maro114510]

Merge Overview

This pull request delivers a major update (v0.3.0) to the Feedly Read Later Opener extension, focusing on improving reliability and user experience by switching to an API-first approach with a DOM fallback, simplifying settings, and ensuring the UI always reflects changes immediately. The reload option is now automatic, and settings are saved instantly when changed.

API integration and reliability improvements:

• Added Feedly API integration (content.js): Now fetches and unsaves entries using the Feedly API when possible, with automatic fallback to the previous DOM-based method if API access fails. This improves reliability and future-proofs the extension. [1] [2] [3] [4] [5]
• Improved error handling and token cache invalidation: Access token cache is cleared on authentication errors to ensure valid credentials are used.

User experience and settings simplification:

• Removed the optional reload setting: The page now always reloads automatically after opening and unsaving items, ensuring the Feedly UI is always up-to-date. The reload checkbox and related code have been removed from the popup and settings logic. [1] [2] [3] [4] [5] [6] [7] [8] [9]
• Settings are now saved immediately when changed, reducing the chance of user confusion and ensuring preferences are always up-to-date.

Documentation and manifest updates:

• Updated documentation (README.md, CHANGELOG.md) to reflect the new API-first approach, automatic reload, and simplified settings. [1] [2] [3]
• Updated manifest.json to version 0.3.0 and added https://api.feedly.com/* to host_permissions for API access. [1] [2]

Code cleanup:

• Removed unused code and parameters, such as the reload option, unused API parameters, and unnecessary event handlers. [1] [2] [3] [4] [5] [6] [7] [8]

These changes together make the extension more robust, user-friendly, and maintainable.

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