74348: Fix security issues reported by LGTM

src/environments/mock-environment.ts

@@ -19,6 +19,7 @@ export const environment: Partial<GlobalConfig> = {
     port: 80,
     // NOTE: Space is capitalized because 'namespace' is a reserved string in TypeScript
     nameSpace: '/angular-dspace',
+    rateLimiter: undefined
   },
     // Caching settings
   cache: {