Reverted New UI Design of WeKan v8.29 and added more fixes and performance improvements.

Thanks to xet7 !

server/publications/migrationProgress.js

@@ -0,0 +1,22 @@
+import { CronJobStatus } from '/server/cronJobStorage';
+
+// Publish detailed migration progress data for admin users
+Meteor.publish('migrationProgress', function() {
+  if (!this.userId) {
+    return this.ready();
+  }
+
+  const user = Users.findOne(this.userId);
+  if (!user || !user.isAdmin) {
+    return this.ready();
+  }
+
+  // Publish detailed migration progress documents
+  // This includes current running job details, estimated time, etc.
+  return CronJobStatus.find({
+    $or: [
+      { jobType: 'migration' },
+      { jobId: 'migration' }
+    ]
+  });
+});