Updated Changelog for 12.3 (#3734)

* Updated Changelog for 12.3

* Link fix

* Reworked the ordering

* Fixed link

* Fixed version numbers

* Added known issuee

* Added svg icons for lighthouse scores

* Updated lighthouse score svgs

* Updated lighthouse status for release notes

* Fixed link

Co-authored-by: Devagouda <[email protected]>
Co-authored-by: Bruce Denham <[email protected]>

Author: 3 people