🔧 - chore: use port 8000 as default backend

Author: svenvandescheur

frontend/.env.example

@@ -1,3 +1,3 @@
-REACT_APP_API_URL=http://localhost:8080
+REACT_APP_API_URL=http://localhost:8000
 REACT_APP_API_PATH=/api/v1
 REACT_APP_ZAAK_URL_TEMPLATE=https://www.example.com/zaken/{identificatie}

frontend/src/lib/api/request.ts

@@ -1,10 +1,10 @@
 import { getCookie } from "../cookie/cookie";
 
 /** Scheme for all API requests. */
-export const API_URL = process.env.REACT_APP_API_URL;
+export const API_URL = process.env.REACT_APP_API_URL || "http://localhost:8000";
 
 /** The base path for all API requests. */
-export const API_PATH = process.env.REACT_APP_API_PATH;
+export const API_PATH = process.env.REACT_APP_API_PATH || "/api/v1";
 
 /** The base url for all API requests. */
 export const API_BASE_URL = `${API_URL}${API_PATH}`;

frontend/src/pages/destructionlist/create/DestructionListCreate.stories.tsx

@@ -25,7 +25,7 @@ const meta: Meta<typeof DestructionListCreatePage> = {
   parameters: {
     mockData: [
       {
-        url: "http://localhost:8080/api/v1/_zaaktypen-choices?",
+        url: "http://localhost:8000/api/v1/_zaaktypen-choices?",
         method: "GET",
         status: 200,
         response: [

frontend/src/pages/destructionlist/detail/DestructionListDetail.stories.tsx

@@ -25,7 +25,7 @@ const meta: Meta<typeof DestructionListDetailPage> = {
   parameters: {
     mockData: [
       {
-        url: "http://localhost:8080/api/v1/_zaaktypen-choices?",
+        url: "http://localhost:8000/api/v1/_zaaktypen-choices?",
         method: "GET",
         status: 200,
         response: [

frontend/src/pages/destructionlist/review/DestructionListReview.stories.tsx

@@ -17,7 +17,7 @@ const meta: Meta<typeof DestructionListReviewPage> = {
   parameters: {
     mockData: [
       {
-        url: "http://localhost:8080/api/v1/_zaaktypen-choices?",
+        url: "http://localhost:8000/api/v1/_zaaktypen-choices?",
         method: "GET",
         status: 200,
         response: [