Course content is visible in ALL tab

[komalm]

Hello @keshavprasadms, @vinukumar-vs, @AmiableAnil, @rajeevsathish

Site Environments Details - SunbirdEd portal of version 4.4.1

Steps To Reproduce :- Click on ALL tab

Expected Result :- Content stiched to courses should not be there on the ALL tab
Actual Result :- Content which is stiched to course are also visible on ALL tab.

Please guide me here

cc @Renuka-S, @vinod303

[Krishnaj20]

@komalm - Content and courses published on SunbirdED have 'Public' visibility hence they are shown in the ALL tab.