Enable dconf

- dconf is used for storing system configuration
diff --git a/modules/dconf.nix b/modules/dconf.nix
new file mode 100644
index 0000000..cd8536c
--- /dev/null
+++ b/modules/dconf.nix
@@ -0,0 +1,3 @@
+{
+  config.programs.dconf.enable = true;
+}