Fix return values from MVCResourceCommand serveResource method

• Type: Task
• Status: Closed
• Priority: Minor
• Resolution: Completed
• Affects Version/s: None
• Fix Version/s: Master
• Component/s: Core Infrastructure, Documents & Media, Portal Configuration, User Management, ~[Archived] WCM
• Labels: None
• Priority Level: Low
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/59313

As described by Shuyang Zhou we are returning the wrong value in the serveResource method inside many MVCResourceCommand classes.

If the resource has been successfully sent we must return false otherwise true (see javadoc).