Configure proxy for API requests and remove hardcoded apiUrl from environment files.

frontend/angular.json

@@ -76,6 +76,9 @@
           }
         },
         "serve": {
+          "options": {
+            "proxyConfig": "proxy.conf.json"
+          },
           "builder": "@angular/build:dev-server",
           "configurations": {
             "production": {

frontend/proxy.conf.json

@@ -0,0 +1,7 @@
+{
+  "/api": {
+    "target": "http://localhost:8080",
+    "secure": false,
+    "changeOrigin": true
+  }
+}

frontend/src/environments/environment.beta.ts

@@ -1,4 +1,3 @@
 export const environment = {
   production: true,
-  apiUrl: 'https://beta.alttd.com',
 };

frontend/src/environments/environment.development.ts

@@ -1,4 +1,3 @@
 export const environment = {
   production: false,
-  apiUrl: 'http://localhost:8080',
 };

frontend/src/environments/environment.production.ts

@@ -1,4 +1,3 @@
 export const environment = {
   production: true,
-  apiUrl: 'https://alttd.com',
 };

frontend/src/environments/environment.ts

@@ -1,4 +1,3 @@
 export const environment = {
   production: true,
-  apiUrl: 'https://alttd.com',
 };