Angular + Google Cloud Firestore Upgrades

Upgraded to @Angular version 20 https://listings-d5ac7.web.app/home 

• Upgraded biannually from version 8 - onward since 2020

• Utilizes enhanced dependency injection by shifting from constructor-based injection to using the inject() function

• Migrated to Angular’s standalone and server-side rendering architecture

• Utilizes a boolean signal to represent the authentication state of a user and drive #UI updates and route protection

• Utilizes Angular’s ChangeDetectorRef methods to update the view instantaneously on-demand

• Streamlines responsiveness by eliminating unused #Bootstrap code

• Uses the new modular #Firebase Web SDK API surface designed to facilitate tree-shaking
  

Angular, Standalone Components, NG Bootstrap, ECMAScript, Typescript, JSON Server, Google Cloud Firebase, Google Cloud Firestore, (GCP), AngularFire, FileReader API, Dependency Injection, User Authentication, Permission Based Access Control, Angular Signals, Angular ChangeDetectorRef, and Custom Directives.