fix(admin-ui): Fix widths of product variant inputs

Fixes #503

packages/admin-ui/src/lib/catalog/src/components/product-variants-table/product-variants-table.component.scss

@@ -4,10 +4,6 @@
     color: $color-grey-300;
 }
 
-input {
-    width: 100%;
-}
-
 .stock, .price {
     input {
         max-width: 96px;

packages/admin-ui/src/lib/core/src/shared/components/currency-input/currency-input.component.scss

@@ -4,7 +4,6 @@
 }
 
 input {
-    width: 100%;
     max-width: 96px;
     &[readonly] {
         background-color: transparent;