https://github.com/tracim/tracim/issues/695, application of the width not on the sidebar but on its content

frontend/src/css/Sidebar.styl

-sidebar-width = 280px
+sidebar-width = 300px
 sidebar-animate-speed = 0.5s
 
 .sidebarSticky
 .sidebar
   position relative
   transition all sidebar-animate-speed
-  width sidebar-width
   min-height 100%
   background-image url('../img/applat.png')
   background-repeat repeat
       padding 15px 30px
   &__navigation
     padding 0
+    width sidebar-width
     overflow hidden
     &__workspace
       padding-left 0