Firefox 141 supports cross-origin LCP render time (#27753)

* Firefox DOES support crosss-origin LCP render time

* Remove experimental flag

* Update api/LargestContentfulPaint.json

Co-authored-by: Claas Augner <[email protected]>

---------

Co-authored-by: Claas Augner <[email protected]>

Author: tunetheweb

api/LargestContentfulPaint.json

@@ -249,7 +249,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": false
+                "version_added": "141"
               },
               "firefox_android": "mirror",
               "oculus": "mirror",
@@ -264,7 +264,7 @@
               "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }