soft delete code added

backend/models/Meeting.js

@@ -11,6 +11,10 @@ const meetingSchema = new mongoose.Schema({
   endTime: String,
   recipients: [String],
   attachments: [{ filename: String, path: String }],
+  isDeleted: {
+    type: Boolean,
+    default: false
+  }
 });
 
 module.exports = mongoose.model("Meeting", meetingSchema);