Fix extra space

src/app/pipes/fullname-pipe.ts

@@ -6,7 +6,7 @@ import { Pipe, PipeTransform } from '@angular/core';
 export class FullNamePipe implements PipeTransform {
   transform(person: any, args?: any): any {
     if (person) {
-      return [person.firstName, person.middleName, person.lastName].join(" ");
+      return [person.firstName, person.middleName, person.lastName].filter(Boolean).join(" ");
     } else {
       return "";
     }