Update app.css
Update app.css

remove unnecessary scrollbars on popovers
jclafuente/kanboard,patoi/kanboard,julesverhaeren/kanboard,libin/kanboard,xavividal/kanboard,jtourt/kanboard,Shaxine/kanboard,kanboard/kanboard,filhocf/kanboard,erwang/kanboard,lianguan/kanboard,djpadz/kanboard,BlueTeck/kanboard,BlueTeck/kanboard,sanbiv/kanboard,dromek/kanboard,JeroenKnoops/kanboard,jclafuente/kanboard,jtourt/kanboard,thylo/kanboard,vaikan/kanboard,EpocDotFr/kanboard,lianguan/kanboard,BlueTeck/kanboard,libin/kanboard,Busfreak/kanboard,cdgeelen/kanboard,stinnux/kanboard,julesverhaeren/kanboard,cdgeelen/kanboard,xavividal/kanboard,stinnux/kanboard,oliviermaridat/kanboard,Shaxine/kanboard,EpocDotFr/kanboard,Busfreak/kanboard,stinnux/kanboard,fguillot/kanboard,renothing/kanboard,erwang/kanboard,fguillot/kanboard,fguillot/kanboard,oliviermaridat/kanboard,mcorteel/kanboard,jvizueta/kanboard,jclafuente/kanboard,Nerdingher/kanboard,renothing/kanboard,kclabrador/kan-test,dromek/kanboard,vaikan/kanboard,kanbantestnew/kanban,patoi/kanboard,kanboard/kanboard,cdgeelen/kanboard,oliviermaridat/kanboard,Nerdingher/kanboard,Shaxine/kanboard,kanboard/kanboard,jtourt/kanboard,kclabrador/kan-test,djpadz/kanboard,mcorteel/kanboard,kasunf/KanboardBOI,lianguan/kanboard,xavividal/kanboard,Nerdingher/kanboard,jvizueta/kanboard,JeroenKnoops/kanboard,vjscjp09/kanboard-1,marienfressinaud/kanboard,sanbiv/kanboard,mcorteel/kanboard,dromek/kanboard,patoi/kanboard,julesverhaeren/kanboard,vjscjp09/kanboard-1,thylo/kanboard,thylo/kanboard,filhocf/kanboard,kasunf/KanboardBOI,filhocf/kanboard,creador30/kanboard,vaikan/kanboard,vjscjp09/kanboard-1,djpadz/kanboard,marienfressinaud/kanboard,Busfreak/kanboard,kanbantestnew/kanban,kasunf/KanboardBOI,renothing/kanboard,creador30/kanboard