Correct selector to set blank target on links
Better selector for issues links in list

(as github use the same classe, "issue-link" as we do !)
Open issues from issues/comments links in a modal
Enhance top bar is width < 1024px
Allow modals to be set full-screen ("f" shortcut)
Add a close button to issues opened in modals
Add a title to close buttons (for modals)
Enhance issue in full-screen modals