Merge branch '391-bug-home-screen-not-centered' into 'master'

Resolve "bug: home screen not centered"

Closes #391

See merge request bloodyhealth/drip!232

styles/index.js

@@ -116,7 +116,8 @@ export default StyleSheet.create({
     color: fontOnPrimaryColor
   },
   homeView: {
-    margin: 40,
+    alignItems: 'center',
+    marginVertical: 40
   },
   homeDescriptionText: {
     width: 200,