Better mobile form styles

web/assets/styles/form.scss

 .filters__section {
   display: flex;
   padding: .5em 0;
+
+  @media(max-width: 768px) {
+    flex-direction: column;
+  }
 }
 
 .filters__subsection--sort {
 
 .filters__subsection {
   flex: 1;
-  padding: 0 1em;
 
   &.filters__subsection--static {
     flex: 1;
   }
+
+  &:nth-child(2) {
+    padding: 0 1em;
+
+    @media(max-width: 768px) {
+      padding: 0;
+    }
+  }
 }
 
 .form__field {