renaming backend, cellxgene to server, client respectively

client/src/reducers/responsive.js

@@ -0,0 +1,20 @@
+// jshint esversion: 6
+const Responsive = (
+  state = {
+    width: null,
+    height: null
+  },
+  action
+) => {
+  switch (action.type) {
+    case "window resize":
+      return Object.assign({}, state, {
+        width: action.data.width,
+        height: action.data.height
+      });
+    default:
+      return state;
+  }
+};
+
+export default Responsive;