Merge pull request #2499 from anilgooru/release-6.6.3.a1

Implemented issue with role name : "content_admin" (content admin).
"Changes made for displaying the cursor icon and messages"
Merge remote-tracking branch 'upstream/release-6.6.3.a1' into release-6.6.3.a1
Merge pull request #2501 from suryanarayanakb/release-6.6.3.a1

Changes made for displaying the cursor icon and messages
"clearing the frames and changed the question count"
"changed the print element"
Merge remote-tracking branch 'upstream/release-6.6.3.a1' into release-6.6.3.a1
Merge pull request #2505 from suryanarayanakb/release-6.6.3.a1

Changed the print element
"Added thumbnail in the player service"
Merge pull request #2506 from suryanarayanakb/release-6.6.3.a1

Added thumbnail in the player service
Calling review API twice issue has been fixed.
Merge branch 'release-6.6.3.a1' of https://github.com/Gooru/Gooru-Web into release-6.6.3.a1
Merge pull request #2509 from shivalinga/release-6.6.3.a1

Calling review API twice issue has been fixed.
Calling review API twice issue has been fixed.
Merge pull request #2512 from shivalinga/release-6.6.3.a1

Calling review API twice issue has been fixed.
Fixed showing/hiding view admin portal issue.
Merge remote-tracking branch 'upstream/release-6.6.3.a1' into release-6.6.3.a1

* upstream/release-6.6.3.a1:
  Calling review API twice issue has been fixed.
  Calling review API twice issue has been fixed.
  "Added thumbnail in the player service"
  "changed the print element"
  "clearing the frames and changed the question count"
  "Changes made for displaying the cursor icon and messages"