Remove some bottom padding from main div.

This removes unnecesary vertical scroll on kanban when
horizontal scroll is available. It seems not affects
much other sections.

An other option to do this is adding more additional
padding to kanban column height fixer but it reduces
considerable the working zone.

app/coffee/modules/kanban/main.coffee

@@ -251,11 +251,12 @@ module.directive("tgKanbanRowWidthFixer", KanbanRowWidthFixerDirective)
 
 KanbanColumnHeightFixerDirective = ->
     mainPadding = 32 # px
+    scrollPadding = 0 # px
 
     renderSize = ($el) ->
         elementOffset = $el.parent().parent().offset().top
         windowHeight = angular.element(window).height()
-        columnHeight = windowHeight - elementOffset - mainPadding
+        columnHeight = windowHeight - elementOffset - mainPadding - scrollPadding
         $el.css("height", "#{columnHeight}px")
 
     link = ($scope, $el, $attrs) ->

app/styles/layout/base.scss

@@ -103,6 +103,7 @@ body {
 .main {
     @include table-flex-child(8, 600px, 0, 600px);
     padding: 2rem;
+    padding-bottom: 1rem;
 }
 
 .icon {