adding dictionary mangt and fix of signup related issues

following are the fixes and updated -dicitonary management added to the ISL project

• initial rendering of videos replaced with the play button -added snackbar for (add update delete) in diciotnary management module -bugs fixed -view progress fixed -password text overlap with label[done] -signup text fields validations[done] -sign up page should be empty[done] -need password validation in signup page [done] "^(?=.[a-z])(?=.[A-Z])(?=.[0-9])(?=.[!@#$%^&*])(?=.{10,})" -booklist id getting updated after upload i