Unify displayed statuses; update updates UI

dist/css/base/gin.css

dist/css/components/project_browser.css

dist/css/theme/variables.css

styles/base/_body.scss

styles/base/_status.scss

styles/base/_update.scss

styles/components/project_browser.scss

styles/gin.scss

styles/theme/variables.scss

templates/admin/update-project-status.html.twig