chore(server): Move api-server in to it's own DIR

api-server/common/utils/themes.js

@@ -0,0 +1,10 @@
+export const themes = {
+  night: 'night',
+  default: 'default'
+};
+
+export const invertTheme = currentTheme => (
+  !currentTheme || currentTheme === themes.default ?
+    themes.night :
+    themes.default
+);