Quick Share Buttons | Change Twitter icon to X (#33445)

* Add XIcon

* Update illustration SVG

* Replace Twitter with X in text strings

* Fix the layout and styling

* Add changelog

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/6474781860

package.json

@@ -23,7 +23,7 @@
 	},
 	"dependencies": {
 		"@automattic/jetpack-analytics": "^0.1.27",
-		"@automattic/jetpack-components": "^0.43.1",
+		"@automattic/jetpack-components": "^0.43.2-alpha",
 		"@automattic/jetpack-shared-extension-utils": "^0.12.1",
 		"@wordpress/block-editor": "12.11.0",
 		"@wordpress/components": "25.9.0",