Made Sidebar scrollable and limited the root height for modular scrollbars

src/renderer/App.vue

@@ -25,6 +25,7 @@ export default {
 .root,.page-wrapper
   display: flex
   font-family: 'Lato', sans-serif
+  max-height: 100vh
 
 .page-wrapper
   flex-direction: column

src/renderer/layouts/DockableSidebar.vue

@@ -56,6 +56,7 @@ section
     background-color: #fcfcfc
     display: flex
     flex-direction: column
+    overflow: auto 
     .grow
         flex-grow: 1
 </style>