add to modal: report book description

[emoltz]

Done: in the modal, there is a button users can press that will "report" the description as not good. After it's pressed, the button text will change to "reported" or something similar.

[emoltz]

Hey team! Please add your planning poker estimate with Zenhub @emoltz @michaelzachor @Pankhurinyu @rohan-sardana @sjeremycohen