The "Contact information" section has ambiguous default fields

[sed-i]

Expected behaviour

In a snap's listing page, the external links in the "contact information" section should explicitly differentiate between the following:

1. The website of the app itself (assuming the snap author is not necessarily the app author).
2. Directly link to the snapcraft.yaml or CI that was used to build the snap (related: Improve trust #4275).

Currently, "primary website" could be interpreted as foo.io or github.com/user/foo, and "source code" could be interpreted as either the app code or the snap code. Unfortunately, most snaps on the store do not backlink to the snapcraft.yaml.

Steps to reproduce the problem

Specs

Current label	Proposed label
Primary website	App website
Source code	App source code
(Missing)	Link to snapcraft.yaml or build workflow

• This issue is related to the snapcraft.io website itself (and not a specific snap).