Fix open default to home page
Improve path join and open with no arg
add labels and milestones
Add tea open
Reviewed-on: https://gitea.com/gitea/tea/pulls/101
Reviewed-by: 6543 <6543@noreply.gitea.io>
Reviewed-by: John Olheiser <john.olheiser@gmail.com>
Lunny Xiao