Replace alembic emoji with test tube emoji for experimental features (#4789)

Author: CalixTang

docs/accessibility.md

@@ -339,7 +339,7 @@ Indicates whether a selectable element is currently selected or not.
 
 ### `experimental_accessibilityOrder`
 
-:::important Experimental ⚗️
+:::important Experimental 🧪
 **This API is experimental.** Experimental APIs may contain bugs and are likely to change in a future version of React Native. Don't use them in production.
 :::
 :::note

docs/view.md

@@ -385,7 +385,7 @@ Setting to false prevents direct children of the view from being removed from th
 
 ### `experimental_accessibilityOrder`
 
-:::important Experimental ⚗️
+:::important Experimental 🧪
 **This API is experimental.** Experimental APIs may contain bugs and are likely to change in a future version of React Native. Don't use them in production.
 :::
 

docs/virtualview.md

@@ -1,9 +1,9 @@
 ---
 id: virtualview
-title: VirtualView ⚗️
+title: VirtualView 🧪
 ---
 
-:::important Experimental ⚗️
+:::important Experimental 🧪
 **This API is experimental.** Experimental APIs may contain bugs and are likely to change in a future version of React Native. Don't use them in production.
 :::