Main to Develop Sync after 1.4.3 release

[subodhr258]

Release Issue: #1232

[Copilot]

Pull Request Overview

This PR synchronizes the main branch with the develop branch following the 1.4.3 release. The changes update version numbers across multiple files and add changelog entries for the new release.

Key changes:

• Version number updated from 1.4.2 to 1.4.3 across all relevant files
• Added v1.4.3 changelog entries with feature improvements and bug fixes
• Updated @SInCE documentation tag from "n.e.x.t" to "1.4.3"

Reviewed Changes

Copilot reviewed 6 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
readme.txt	Updated stable tag and added v1.4.3 changelog with feature list
package.json	Bumped version number to 1.4.3
inc/helpers/custom-functions.php	Updated @SInCE tag from "n.e.x.t" to "1.4.3"
godam.php	Updated plugin version and RTGODAM_VERSION constant
README.md	Updated stable tag to 1.4.3
CHANGELOG.md	Added v1.4.3 changelog section with improvements and fixes

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