feat(popper): arrow option & docs consistency across components (#875)

docs/content/3.forms/4.select-menu.md

@@ -91,6 +91,22 @@ Try to search for something that doesn't exist in the example below.
 
 :component-example{component="select-menu-example-creatable" :componentProps='{"class": "w-full lg:w-40"}'}
 
+## Popper
+
+Use the `popper` prop to customize the popper instance.
+
+### Arrow
+
+:component-example{component="select-menu-example-arrow"}
+
+### Placement
+
+:component-example{component="select-menu-example-placement"}
+
+### Offset
+
+:component-example{component="select-menu-example-offset"}
+
 ## Slots
 
 ### `label`