Improve front matter "added" params

Add missing ones and add the ability to show or hide the badge

Fixes a few more 404 errors in the version picker

site/content/docs/5.3/utilities/object-fit.md

@@ -4,6 +4,8 @@ title: Object fit
 description: Use the object fit utilities to modify how the content of a [replaced element](https://developer.mozilla.org/en-US/docs/Web/CSS/Replaced_element), such as an `<img>` or `<video>`, should be resized to fit its container.
 group: utilities
 toc: true
+added:
+  version: "5.3"
 ---
 
 ## How it works