feat: add scheduler jobs component (#346)

Fixes: #177

src/app/system/system.service.ts

@@ -53,6 +53,20 @@ export class SystemService {
     return this.http.get('/surveys');
   }
 
+  /**
+   * @returns {Observable<any>} Fetches Jobs.
+   */
+  getJobs(): Observable<any> {
+    return this.http.get('/jobs');
+  }
+
+  /**
+   * @returns {Observable<any>} Fetches Scheduler.
+   */
+  getScheduler(): Observable<any> {
+    return this.http.get('/scheduler');
+  }
+
   /**
    * @param {any} code Code to be created.
    * @returns {Observable<any>}