V2.8 – Added all the required properties in builder mode, formatting in rich text editor and option to switch between light and dark theme

Resolved GitHub issues : #15, #17, #19, #20, #21, #22, #26, #27
Merge pull request #29 from CTDisasterManagement/V2.8

V2.8 – Added all the required properties in builder mode, formatting in rich text editor and option to switch between light and dark theme