Chore: Check for deprecations using eslint plugin

Chore: environment file replacement stopped.
Chore: All components are now standalone and removed all modules
Chore: App routing is now in app.routes and similarly for all submodules
Chore: Http interceptors are now functional and split refresh interceptor into a separate one.

overlord/src/app/app.environment.ts

@@ -0,0 +1,18 @@
+export const environment = {
+  // eslint-disable-next-line @typescript-eslint/naming-convention
+  ACCESS_TOKEN_REFRESH_MINUTES: 10, // refresh token 10 minutes before expiry
+  version: '12.1.1',
+  title: 'HnG / TGB',
+};
+
+export const dateFormat = {
+  parse: {
+    dateInput: 'DD-MMM-YYYY',
+  },
+  display: {
+    dateInput: 'DD-MMM-YYYY',
+    monthYearLabel: 'MMM YYYY',
+    dateA11yLabel: 'DD-MMM-YYYY',
+    monthYearA11yLabel: 'MMM YYYY',
+  },
+};