Add Changelog entry, remove unneeded code

CHANGELOG.md

@@ -6,4 +6,6 @@
 
 ### Changed
 
+- Config is loaded from the frontend at runtime now.
+
 ### Fixed

ui/src/api/client-config.ts

@@ -1,10 +1,10 @@
 export interface ClientConfig {
-    'env': 'dev' | 'int' | 'prod',
-    'ion_default_access_token': string,
-    'auth': {
-        'cognito_client_id': string,
-        'cognito_pool_id': string,
-        'cognito_identity_pool_id': string,
-        'cognito_aws_region': string,
+    env: 'dev' | 'int' | 'prod',
+    ion_default_access_token: string,
+    auth: {
+        cognito_client_id: string,
+        cognito_pool_id: string,
+        cognito_identity_pool_id: string,
+        cognito_aws_region: string,
     }
 }

ui/src/api/config.service.ts

@@ -9,11 +9,9 @@ export class ConfigService {
   }
 
   async getConfig(): Promise<ClientConfig | null> {
-    const headers = {};
     try {
       const response = await fetch(`${this.apiUrl}/client-config`, {
         method: 'GET',
-        headers: headers,
       });
       return await response.json() as ClientConfig;
     } catch (e) {