monograph: add sync support (#39)

* monograph: add sync support

* monograph: fix password field && improve syncing logic && fix delete endpoint

* sync: get rid of unnecessary .ToList & ToListAsync

* sync: AddIdsToAllDevices is no longer asynchronous

* monograph: simplify and fix several bugs

- we were sending the triggerSync event to all users instead of all devices
- asynchronous methods did not have the `Async` suffix
- we weren't properly replacing the deleted monograph

* monograph: fix minor issues
* fix publishing
* don't return deleted monograph in monographs/:id endpoint
* persist UserId when soft deleting monograph

* monograph: check soft delete status in several endpoints

---------

Co-authored-by: Abdullah Atta <abdullahatta@streetwriters.co>

Notesnook.API/Services/SyncDeviceService.cs

@@ -194,6 +194,21 @@ namespace Notesnook.API.Services
             }
         }
 
+        public void AddIdsToAllDevices(List<string> ids)
+        {
+            foreach (var id in ListDevices())
+            {
+                if (IsSyncReset(id)) return;
+                lock (id)
+                {
+                    if (!IsDeviceRegistered(id)) Directory.CreateDirectory(Path.Join(device.UserSyncDirectoryPath, id));
+
+                    var oldIds = GetUnsyncedIds(id);
+                    File.WriteAllLinesAsync(Path.Join(device.UserSyncDirectoryPath, id, "unsynced"), ids.Union(oldIds));
+                }
+            }
+        }
+
         public void RegisterDevice()
         {
             lock (device.UserId)