fix the width of workspace component in the sidebar

frontend/src/css/Sidebar.styl

             letter-spacing 2px
           &__name
             padding 10px
+            width 224px
             font-size 20px
             color off-white
             white-space nowrap
             overflow hidden
             text-overflow ellipsis
           &__icon
-            margin 0 10px 0 auto
+            display flex
+            align-items center
+            width 26px
+            height 50px
             color white
           &__submenu
             margin 0