Folders: Implemneted updation of item sequence of all items on adding a new folder for all levels.
Merge branch 'release-6.6.3.a1' of https://github.com/Gooru/Gooru-Web into release-6.6.3.a1
Merge pull request #1915 from VinRudramurthy/release-6.6.3.a1

Folders: Implemneted updation of item sequence of all items on adding a new folder for all levels.