use override-sass-styles on textarea v3

src/Nri/Ui/InputStyles/V2.elm

@@ -95,7 +95,8 @@ label theme inError =
                 ]
 
 
-{-| -}
+{-| In order to use these styles in an input module, you will need to add the class "override-sass-styles". This is because sass styles in the monolith have higher precendence than the class styles here.
+-}
 input : Theme -> Bool -> Style
 input theme isInError =
     let

src/Nri/Ui/TextArea/V3.elm

@@ -114,6 +114,7 @@ view_ theme model =
                 ]
                 [ Events.onInput model.onInput
                 , Attributes.id (generateId model.label)
+                , Attributes.class "override-sass-styles"
                 , Attributes.autofocus model.autofocus
                 , Attributes.placeholder model.placeholder
                 , Attributes.attribute "data-gramm" "false" -- disables grammarly to prevent https://github.com/NoRedInk/NoRedInk/issues/14859