fix: generate valid YAML in client.yml

The previous >- block scalar indentation was wrong, causing ntfy to fail
with 'yaml: line 7: could not find expected :'. Switched to inline
command strings which produce clean, parsable YAML.

modules/home-manager/ntfy-notify/default.nix

@@ -1,5 +1,3 @@
-Warning: Identity file /home/jpporta/.ssh/id_rsa not accessible: No such file or directory.
-Warning: Identity file /home/jpporta/.ssh/id_rsa not accessible: No such file or directory.
 {
   config,
   lib,
@@ -8,15 +6,6 @@ Warning: Identity file /home/jpporta/.ssh/id_rsa not accessible: No such file or
 }:
 let
   cfg = config.custom.ntfy-notify;
-
-  # Escape the whole command string for the YAML config. Since ntfy reads this
-  # from client.yml directly (not from systemd), we pass notify-send arguments
-  # as a shell command string — ntfy will spawn a shell to run it.
-  mkSubscription = topic: priority:
-    lib.generators.toYaml { } [{
-      topic = "${cfg.server}/${topic}";
-      command = ''notify-send -a "Kanban" -u "${priority}" "Kanban Update" "''${m}"'';
-    }];
 in
 {
   options.custom.ntfy-notify = {
@@ -58,17 +47,19 @@ in
   config = lib.mkIf cfg.enable {
     home.packages = [ pkgs.ntfy-sh ];
 
-    # Client config with subscription → notify-send mappings.
-    # ntfy subscribe (without args) reads subscriptions from here.
+    # Client config with subscription → notify-send command mappings.
+    # ntfy subscribe (without args) reads subscriptions from client.yml.
     xdg.configFile."ntfy/client.yml" = {
       text = ''
         # Generated by ndots ntfy-notify module.
-        # Each incoming message spawns a notify-send → your notification daemon.
+        # Each message spawns notify-send → your notification daemon.
         subscribe:
       '' + lib.concatMapStringsSep "\n" (sub:
+        let
+          cmd = "notify-send -a Kanban -u ${sub.priority} \"Kanban Update\" \"$m\"";
+        in
         "  - topic: ${cfg.server}/${sub.topic}\n"
-        + "    command: >-\n"
-        + ''      notify-send -a "Kanban" -u "${sub.priority}" "Kanban Update" "$m"''
+        + "    command: ${cmd}"
       ) cfg.subscriptions;
     };