Backport jetpack 15.4-a.3 changes (#46303)

* Changelog and readme.txt edits.

* Update stable tag in readme.txt

* Update projects/js-packages/charts/CHANGELOG.md

Co-authored-by: Manzoor Wani <manzoorwani.jk@gmail.com>

---------

Co-authored-by: Manzoor Wani <manzoorwani.jk@gmail.com>

Author: gmjuhasz

projects/js-packages/ai-client/CHANGELOG.md

@@ -1,6 +1,6 @@
 {
 	"name": "@automattic/jetpack-ai-client",
-	"version": "0.33.24",
+	"version": "0.33.25",
 	"private": false,
 	"description": "A JS client for consuming Jetpack AI services",
 	"homepage": "https://github.com/Automattic/jetpack/tree/HEAD/projects/js-packages/ai-client/#readme",

projects/js-packages/ai-client/changelog/add-social-ai-image-generation-modal-poc

@@ -1,6 +1,6 @@
 {
 	"name": "@automattic/charts",
-	"version": "0.51.0",
+	"version": "0.52.0",
 	"description": "Display charts within Automattic products.",
 	"homepage": "https://github.com/Automattic/jetpack/tree/HEAD/projects/js-packages/charts/#readme",
 	"bugs": {