Ship v4.1.0 (#26218)

* update docs path from docs/4.0/ to docs/4.1/

* bump version to 4.1.0

* Update redirects to work for 4.1 docs move

* Update docs version switcher to include latest and link to 4.0 docs

* re-run dist

* Update package-lock.json

* Update docs-navbar.html

docs/4.1/utilities/image-replacement.md

@@ -0,0 +1,27 @@
+---
+layout: docs
+title: Image replacement
+description: Swap text for background images with the image replacement class.
+group: utilities
+toc: true
+---
+
+Utilize the `.text-hide` class or mixin to help replace an element's text content with a background image.
+
+{% highlight html %}
+<h1 class="text-hide">Custom heading</h1>
+{% endhighlight %}
+
+{% highlight scss %}
+// Usage as a mixin
+.heading {
+  @include text-hide;
+}
+{% endhighlight %}
+
+Use the `.text-hide` class to maintain the accessibility and SEO benefits of heading tags, but want to utilize a `background-image` instead of text.
+
+{% capture example %}
+<h1 class="text-hide" style="background-image: url('/assets/brand/bootstrap-solid.svg'); width: 50px; height: 50px;">Bootstrap</h1>
+{% endcapture %}
+{% include example.html content=example %}