Remove panel switcher, add rudimentary drawer

src/components/side_drawer/side_drawer.js

@@ -0,0 +1,13 @@
+const SideDrawer = {
+  props: [ 'activatePanel', 'closed' ],
+  computed: {
+    currentUser () {
+      return this.$store.state.users.currentUser
+    },
+    chat () {
+      return this.$store.state.chat.channel
+    }
+  }
+}
+
+export default SideDrawer