Bug 1528986 - Fixed text area extended beyond modal

behatnotneeded

Change-Id: I2c7b76e1b62a1c9524bb177d1485cc7edb7352b0
(cherry picked from commit 862bd72d)

htdocs/theme/raw/sass/form/_form.scss

@@ -13,6 +13,7 @@ textarea,
 select {
     .modal & {
         width: auto;
+        max-width: 100%;
     }
 }