Tabs style update.
route: code layout clean up new issues route
route: code layout clean up wikis route
route: simplify project settings and issues copy route
route: code layout clean up activities route
route: code layout clean up welcome route
Traditional Chinese translation updated by ChunChang Lo (#9882)
route: code layout clean up settings route
route: code layout clean up workflows route
route: code layout clean up ldap_auth_sources route
