Fx147 support for view transition types (#28613)

* Fx147 preview support for view transition types

* Change preview data to 147

* Revert changes already covered in the latest Fx collector PR

Author: chrisdavidmills

css/selectors/active-view-transition-type.json

@@ -16,7 +16,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "147"
             },
             "firefox_android": "mirror",
             "oculus": "mirror",