Fix SplitView max-height bug that was breaking scrolling

Author: christianbundy

index.js

@@ -167,7 +167,6 @@ function openMainWindow () {
       icon: Path.join(__dirname, 'assets/icon.png')
     })
 
-
     windowState.manage(windows.main)
     windows.main.setSheetOffset(40)
     windows.main.on('close', function (e) {

styles/base/split-view.mcss

@@ -1,6 +1,7 @@
 SplitView {
   display: flex
   flex: 3
+  max-height: 100%
   div.main {
     display: flex
     flex-direction: column