GH-66 : Prepare plugin for the release

[shreyasikhar]

This PR brings the changes like:

• Update screenshots and gifs with current implementation
• Updates to plugin's readme.txt and github's README.md
• Updates on the plugin header information
• Updates on .po file,package.json and package-lock.json with a version bump

Note: New plugin version will be 1.1

[gagan0123]

@shreyasikhar Nice catch of version number in package.json and copyright year, I missed it in the documentation 👍

[shreyasikhar]

@shreyasikhar Nice catch of version number in package.json and copyright year, I missed it in the documentation 👍

I will update this in the documentation.