DO-2057 : [UI] [Error fields] All fields that need orange messages should have orange outline - Implemented for Questions.
Passing null instead of empty string.
Merge remote-tracking branch 'upstream/release-6.6.3.a1' into release-6.6.3.a1

* upstream/release-6.6.3.a1:
  Changes for empty search implemented
  "highlighting the scored question tab and time coversion, passing the absolute css file names for save option (for checcking )"
  search filters UI changes implemented
  "clear dropdown option integrated for add resource,edit resource,add user uploaded resource and edit user uploaded resource popups"
DO-2057 : [UI] [Error fields] All fields that need orange messages should have orange outline - Implemented for edit resource.
Merge pull request #2340 from anilgooru/release-6.6.3.a1

DO-2057 : [UI] [Error fields] All fields that need orange messages should have orange outline