In this commit we have added new method name isHtmlEmpty in kanban view. As we are convertting text field to html field, we will need to check html field in if conditions. As Html field will contain tags we cannot check it every time perfectly. So, we need this method to make sure html field is empty or not. Task id: 2499504 X-original-commit: 2968dcea7fb58795eeb34949f4bbfc1029938cd1