chore(nsconfig): make data optional parameter for getNsConfigDefaultContent

Author: KristianDD

PublicAPI.md

@@ -196,7 +196,7 @@ Returns the default content of "nsconfig.json" merged with the properties provid
  * Returns the default content of "nsconfig.json" merged with the properties provided by the "data" argument.
  * @param {Object} data Properties that should not be defaulted.
  */
- getNsConfigDefaultContent(data: Object): string
+ getNsConfigDefaultContent(data?: Object): string
 ```
 
 ## extensibilityService

lib/services/project-data-service.ts

@@ -126,7 +126,7 @@ export class ProjectDataService implements IProjectDataService {
 	}
 
 	@exported("projectDataService")
-	public getNsConfigDefaultContent(data: Object): string {
+	public getNsConfigDefaultContent(data?: Object): string {
 		const config: INsConfig = {};
 		Object.assign(config, data);