Js forms updates (#4378)

* Refactor forms for creating and editing SalesOrder

- Common function for defining fields

* More visual improvements for forms

* Refactor fields for SupplierPartPriceBreak

* More refactoring

* Refactor for stockitemtestresult table

* Comment fields

* JS linting fix

InvenTree/company/templates/company/supplier_part.html

@@ -299,27 +299,12 @@ loadSupplierPriceBreakTable({
 });
 
 $('#new-price-break').click(function() {
-
-    constructForm(
-        '{% url "api-part-supplier-price-list" %}',
-        {
-            method: 'POST',
-            fields: {
-                quantity: {},
-                part: {
-                    value: {{ part.pk }},
-                    hidden: true,
-                },
-                price: {},
-                price_currency: {
-                },
-            },
-            title: '{% trans "Add Price Break" %}',
-            onSuccess: function() {
-                $("#price-break-table").bootstrapTable("refresh");
-            }
+    createSupplierPartPriceBreak({{ part.pk }}, {
+        onSuccess: function() {
+            $("#price-break-table").bootstrapTable("refresh");
         }
-    );
+    });
+
 });
 
 loadPurchaseOrderTable($("#purchase-order-table"), {