refectored Drawer component and added Postie

src/app/organisms/navigation/common.js

@@ -0,0 +1,21 @@
+import initMatrix from '../../../client/initMatrix';
+
+function AtoZ(aId, bId) {
+  let aName = initMatrix.matrixClient.getRoom(aId).name;
+  let bName = initMatrix.matrixClient.getRoom(bId).name;
+
+  // remove "#" from the room name
+  // To ignore it in sorting
+  aName = aName.replaceAll('#', '');
+  bName = bName.replaceAll('#', '');
+
+  if (aName.toLowerCase() < bName.toLowerCase()) {
+    return -1;
+  }
+  if (aName.toLowerCase() > bName.toLowerCase()) {
+    return 1;
+  }
+  return 0;
+}
+
+export { AtoZ };