Added Terms and Privacy components with routing

Introduced `TermsComponent` and `PrivacyComponent` with basic templates, styles, and unit tests. Updated routing in `app.module` to include `/terms` and `/privacy` paths and registered these components.

frontend/src/app/rules/rules.component.ts

@@ -7,5 +7,5 @@ import {Component} from '@angular/core';
   styleUrl: './rules.component.scss'
 })
 export class RulesComponent {
-
+  scrollService: any;
 }