Enable no implicit this (#2709)

* Enable no implicit this

* Fix this reference in order return utils

src/orders/views/OrderReturn/utils.tsx

@@ -56,12 +56,12 @@ class ReturnFormDataParser {
       ? this.formData.amount
       : undefined;
 
-  private getParsedLineData = function<
+  private getParsedLineData = <
     T extends OrderReturnFulfillmentLineInput | OrderReturnLineInput
   >(
     itemsQuantities: FormsetQuantityData,
     idKey: "fulfillmentLineId" | "orderLineId",
-  ): T[] {
+  ): T[] => {
     const { itemsToBeReplaced } = this.formData;
 
     return itemsQuantities.reduce((result, { value: quantity, id }) => {

tsconfig.json

@@ -9,6 +9,7 @@
     "target": "es5",
     "noUnusedLocals": true,
     "noUnusedParameters": true,
+    "noImplicitThis": true,
     "paths": {
       "@assets/*": ["assets/*"],
       "@locale/*": ["locale/*"],