Issues list layout

[kevinrandrup]

User story

As a programmer interested in a GitHub project, I want to see the complete title information for the issues that I've searched for

Acceptance criteria

Replace the flow layout with UICollectionLayoutListConfiguration / UICollectionViewCompositionalLayout.list / UICollectionViewListCell
Display the entire issue title over however many lines it requires.
Add a UICellAccessory.disclosureIndicator to each cell
Display the loading state and empty/error states as headers in the collection view.
Display a line separator in between cells

Designs

[kevinrandrup]

Not going to assign this to Via yet, recommend doing this via pairing as there tons of new stuff APIs and tricky behavior going on.

Low priority / probably the last task that should be done but a valuable one.