UI refinements for Search and Spell Checker.
Merge pull request #2336 from anilgooru/release-6.6.3.a1

UI refinements for Search and Spell Checker.
Merge remote-tracking branch 'upstream/release-6.6.3.a1' into release-6.6.3.a1

* upstream/release-6.6.3.a1:
search filters UI changes implemented
Merge branch 'release-6.6.3.a1' of https://github.com/Gooru/Gooru-Web into release-6.6.3.a1
Merge pull request #2335 from sravanthi1/release-6.6.3.a1

"clear dropdown option integrated for add resource,edit resource and add user uploaded resource and edit user uploaded resource popups "
Merge pull request #2337 from ssushma/release-6.6.3.a1

Search Filter improvements implemented
"highlighting the scored question tab and time coversion, passing the absolute css file names for save option (for checcking )"
Merge remote-tracking branch 'upstream/release-6.6.3.a1' into release-6.6.3.a1
Merge pull request #2338 from suryanarayanakb/release-6.6.3.a1

"high lighting the scored question tab and time coversion, passing the absolute css file names for save option (for checking )"
Changes for empty search implemented
Merge branch 'release-6.6.3.a1' of https://github.com/Gooru/Gooru-Web into release-6.6.3.a1
Merge pull request #2339 from ssushma/release-6.6.3.a1

Changes for empty query search implemented
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
Disabled Dashboard in header.
Merge remote-tracking branch 'upstream/release-6.6.3.a1' into release-6.6.3.a1

* upstream/release-6.6.3.a1: