Export credential as PDF from general share window

[kayaelle]

On general share page: add an "Export credential as PDF" option below “Create a public link”. Please use a PDF icon in the button.

Clicking on "Export credential as PDF" reveals a credential picker, once a credential is picked, provide a preview similar to Share Preview with a button below that reads “Export as PDF”.

Requirements:

• User should only be able to choose one credential at a time
• User should be able to view credential and go back.
• If renderMethod is included in a credential, a link to an svg template is available in renderMethod and the svg file is readable, apply credential data to variables indicated in the svg template and render pdf to be download to mobile device dialog.
• If not, use default svg template. Apply credential data to variables indicated in the svg template and render pdf to be download to mobile device dialog
• If css3MediaQuery is present, reference that css when rendering

Needed for this issue:

• [ ] Sample SVG Template
• [ ] Default SVG Template - where to store this?
• [ ] Signed Credential including renderMethod and SVG template

Resources & Tools:

• Verifiable Credential Rendering Methods: https://w3c-ccg.github.io/vc-render-method/#svgrenderingtemplate2023
• DCC create test credentials: https://issuer.dcconsortium.org/ui

Please add this to testing script.

[kayaelle]

Moving to backlog. Default template requirement is a rabbit hole due to many unknowns about the credential data being displayed. As with #518 we'll first focus on implementing renderMethod.

[alexfigtree]

Depends on https://github.com/digitalcredentials/learner-credential-wallet/issues/491