Adapt Syncthing config to upstream changes

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/50a183182d7ae39133555414d48d5d609a28a57d' (2023-05-21)
  → 'github:NixOS/nixpkgs/7084250df3d7f9735087d3234407f3c1fc2400e3' (2023-05-22)

flake.lock

@@ -116,11 +116,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1684662198,
-        "narHash": "sha256-lmGDGuFONWSoGBKDDhU/6fOhhmFoZQ8rPf+kS7/e/Gs=",
+        "lastModified": 1684754342,
+        "narHash": "sha256-plGnjnbnPLoZCTdQX21oT7xliQhFtgcWlkuDHgtEb1o=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "50a183182d7ae39133555414d48d5d609a28a57d",
+        "rev": "7084250df3d7f9735087d3234407f3c1fc2400e3",
         "type": "github"
       },
       "original": {

modules/datasync.nix

@@ -17,6 +17,7 @@
     user = "coolneng";
     dataDir = "/home/coolneng";
     key = config.age.secrets.syncthing.path;
+    settings = {
       devices.zion = {
         id = "FLI2RS7-GNI5PDM-SQRNF7P-YJIOXJ7-46FRPEI-NRLQGBC-HXRWG7O-RKOVLAF";
         addresses = [ "tcp://192.168.13.2:22000" ];
@@ -81,6 +82,7 @@
         };
       };
     };
+  };
 
   # Automount external storage
   systemd.mounts = [