PR Summary

• Update of plugin and database version
  The core plugin files and related database structures have been updated to adhere to the latest available version i.e., from 3.1.0 to 3.1.1-a-1. This should improve stability and performance.

• Adjustments in package.json
  The package.json file, which holds various metadata relevant to the project, has also been updated to reflect the latest version 3.1.1-a-1. This helps enforce consistency across the project's dependencies and tools.

• Stable Tag Updated in readme.txt
  The readme.txt file's stable tag has been modified to reflect the new version 3.1.1-a-1. The stable tag indicates the current stable version of the project in the repository which the users can use without worry. Clearing this indication can lead to higher user trust and understanding.