Version Bump v15.2.4

overlord/package.json

@@ -1,6 +1,6 @@
 {
   "name": "overlord",
-  "version": "15.2.3",
+  "version": "15.2.4",
   "scripts": {
     "ng": "ng",
     "start": "ng serve",

overlord/src/app/app.environment.ts

@@ -1,6 +1,6 @@
 export const environment = {
   ACCESS_TOKEN_REFRESH_MINUTES: 10, // refresh token 10 minutes before expiry
-  version: '15.2.3',
+  version: '15.2.4',
   title: 'HnG / TGB',
 };