Signature screenshots needed for slide deck in final presentation milestone

[alexfigtree]

@dazzaji Signature screenshots needed for slide deck, to be added to: https://docs.google.com/presentation/d/13I7_G37qNnyRuv28Ev8c_CTF9E6AgCx7YUmsg8gKCoo/edit#slide=id.g1f95291f27_0_127

Screenshots needed:

• Documents: Confirmation of signature (alert popup box)
• Documents: Resulting payload, post-signature (alert popup box)
• Claims: Confirmation of signature (alert popup box)
• Claims: Resulting payload, post-signature (alert popup box)