build: Use prettier for typescript

Stop ignoring .ts files in prettier and fix existing issues.

src/app/system/entity-to-entity-mapping/entity-to-entity-mapping.resolver.ts

@@ -13,18 +13,16 @@ import { SystemService } from '../system.service';
  */
 @Injectable()
 export class EntityToEntityMappingResolver implements Resolve<Object> {
+  /**
+   * @param {SystemService} systemService System service.
+   */
+  constructor(private systemService: SystemService) {}
 
-    /**
-     * @param {SystemService} systemService System service.
-     */
-    constructor(private systemService: SystemService) { }
-
-    /**
-     * Returns the Mapping data.
-     * @returns {Observable<any>}
-     */
-    resolve(): Observable<any> {
-        return this.systemService.getEntityMappings();
-    }
-
+  /**
+   * Returns the Mapping data.
+   * @returns {Observable<any>}
+   */
+  resolve(): Observable<any> {
+    return this.systemService.getEntityMappings();
+  }
 }