* Markdown and Repo header tweaks
- Use CSS vars for all markdown colors
- Tweak repo header, removing double borders and adjust sizes
- Use menu instead of buttons for issue open/close switcher
- Add emoji inversion for select emoji glyphs in arc-green
- Use border over box-shadow for all buttons
- Add spacing element to login form without openid
* repo settings navbar fix
* use shared template in more places and adjust dashboard
* fix remaining open/close combos
* hide: 'New Project board' button
* there is no reason to show the button for users that are not signed in
* update template: specifies the condition together with another one
as per lafriks' suggestion in the comment
* chore: add proper user authorization check
* chore: also hide button if repo is archived
* chore: show project board edit/delete menu to authorized users only
* chore: drop the redundant IsSigned check
* CanWriteIssues and CanWritePulls implies (and requires) signed in user
* Add CanWriteProjects and properly assert permissions
Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
