added delete button with render fix

[MuhammedJaseemVK]

@TheOpenInnovator Hi. I have added add-delete button with render fix. Kindly review

[TheOpenInnovator]

Hey @MuhammedJaseemVK The functionality is great but there are some issues.

• When the Delete button is pressed, only that Color Palate should be deleted, but here all the palates generated are getting deleted.
• If required, provide a delete all palates button seperately, where on clicking that and on further confirmation to delete all, then all the Color Palates generated will be deleted.
• When the Delete button is pressed, ask for a confirmation message & if pressed yes then it should be deleted.

Please Do make the following changes and also if required add any other changes which may benefit the overall website. DO mention all the changes whatever you have made.