The GraphQL API can return `null` nodes in the `projectItems`
connection, causing a runtime panic (nil pointer dereference) when the
CLI attempted to access fields on these nil nodes. This crash occurs
even with personal access tokens with full read access.
Adds a check to safely skip `nil` nodes in `ProjectsV2ItemsForIssue` and
`ProjectsV2ItemsForPullRequest`.
Signed-off-by: Chris Henzie <chrishenzie@google.com>
These changes enhance the existing `gh issue view` experience by listing v2 projects in interactive and non-interactive forms.
Additionally, the tests have been enhanced to use a more standard `httpStubs` approach from other tests.
