Merge pull request #1443 from ssushma/dev-branch

accommodating lifeboard on dropmenu height increased in FE
fixed tutorial page issue from home page
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch
Merge pull request #1444 from nutan-gooru/dev-branch

Fixed tutorial page issue from home page
error message css updated for grades