[#2357] Set correct overflow for 400% zoom

Author: jiromaykin

src/open_inwoner/scss/components/ReadMore/ReadMore.scss

@@ -35,12 +35,17 @@
         display: none;
         &--hidden {
           display: inline;
+          overflow: initial;
         }
       }
     }
     .readmore__content {
       scroll-margin-top: var(--spacing-giant);
       grid-template-rows: 1fr;
+
+      &--hidden {
+        overflow: visible;
+      }
     }
   }
 }