Manual backport of missing partial (#23048)

* Manual backport of missing partial

website/content/docs/upgrading/upgrade-to-1.14.x.mdx

@@ -41,5 +41,4 @@ is measuring cumulative time writing, and not the distribution of individual wri
 
 @include 'known-issues/ui-safari-login-screen.mdx'
 
-@include 'known-issues/aws-static-roles.mdx'
+@include 'known-issues/aws-static-roles.mdx'
-

website/content/partials/known-issues/ui-safari-login-screen.mdx

@@ -0,0 +1,13 @@
+### Safari login screen appears broken on the UI
+
+#### Affected versions
+
+- 1.14.0
+
+#### Issue
+
+The login screen on Safari appears to be broken, presenting as a blank white screen.
+
+#### Workaround
+
+Scroll down to find the login section.

website/content/partials/ui-safari-login-screen.mdx

@@ -0,0 +1,13 @@
+### Safari login screen appears broken on the UI
+
+#### Affected versions
+
+- 1.14.0
+
+#### Issue
+
+The login screen on Safari appears to be broken, presenting as a blank white screen.
+
+#### Workaround
+
+Scroll down to find the login section.