Change username for Openbooks

modules/datasync.nix

@@ -7,11 +7,13 @@
     guiAddress = "0.0.0.0:8384";
     dataDir = "/vault/syncthing";
     key = config.age.secrets.syncthing.path;
-    settings = {
-      extraOptions.options = {
+    extraOptions = {
+      options = {
         maxFolderConcurrency = 4;
         progressUpdateIntervalS = -1;
       };
+    };
+    settings = {
       devices = {
         panacea.id =
           "NF4SYEJ-RSGPDEF-CDEYC3A-JWZMKNC-KG4FVQP-CZ5HRFY-XM22BZD-N7B6VAH";