Add keydown.enter action to new row

A convenient shortcut to "Apply" changes by pressing Enter while filling
 in data for new option values.

Author: chaimann

admin/app/components/solidus_admin/option_types/edit/option_values_table/row/component.js

@@ -10,4 +10,12 @@ export default class extends Controller {
   remove() {
     this.element.remove();
   }
+
+  applyOnEnter(event) {
+    const submitter = event.target.form.elements.apply
+    if (submitter) {
+      event.preventDefault();
+      event.target.form.requestSubmit(submitter);
+    }
+  }
 }

admin/app/components/solidus_admin/option_types/edit/option_values_table/row/component.rb

@@ -45,6 +45,7 @@ def columns
             "aria-label": true,
             form: @form_id,
             "data-#{stimulus_id}-target": "focusable",
+            "data-action": "keydown.enter->#{stimulus_id}#applyOnEnter",
           )
         end
       },
@@ -57,6 +58,7 @@ def columns
             class: "required",
             "aria-label": true,
             form: @form_id,
+            "data-action": "keydown.enter->#{stimulus_id}#applyOnEnter",
           )
         end
       }