Currently direct templates can be created without the required
signatures fields for signers.
This means that the document can be fully signed by everyone but will
ultimately fail the sealing step which leaves the document in an
unrecoverable state.
## Description
Replace the PDF renderer with an custom image renderer.
This allows us to remove the "react-pdf" dependency and allows us to use
a virtual list to improve performance.
Ephraim Duncan
David Nguyen
ephraimduncan
Lucas Smith