chore(flake): note differences to electron-forge build

Author: FliegendeWurst

flake.nix

@@ -163,7 +163,9 @@
                 comment = meta.description;
                 desktopName = "TriliumNext Notes";
                 categories = [ "Office" ];
-                startupWMClass = "Trilium Notes Next";
+                # TODO: electron-forge build has this set to PRODUCT_NAME (forge.config.cjs)
+                # But the plain build doesn't set this (or the app icon).
+                startupWMClass = "TriliumNext Notes";
               })
             ];