Changelog and readme.txt edits.

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/13942658920

Upstream-Ref: Automattic/jetpack@1ef6685

Author: gmjuhasz

package.json

@@ -52,7 +52,7 @@
 		"@automattic/components": "2.2.0",
 		"@automattic/i18n-utils": "1.2.3",
 		"@automattic/jetpack-base-styles": "^0.6.44",
-		"@automattic/jetpack-shared-extension-utils": "^0.18.4-alpha",
+		"@automattic/jetpack-shared-extension-utils": "^0.18.4",
 		"@automattic/launchpad": "1.1.0",
 		"@automattic/typography": "1.0.0",
 		"@popperjs/core": "^2.11.8",