add niri, emacs and stylix modules

modules/home/programs/nixcord.nix

@@ -0,0 +1,15 @@
+{ inputs, ... }: {
+  flake.homeModules.nixcord = {
+    imports = [ inputs.nixcord.homeModules.nixcord ];
+    programs.nixcord = {
+      enable = true;
+      discord.enable = false;
+      vesktop.enable = true;
+      config.useQuickCss = true;
+      config.plugins = {
+        messageLogger.enable = true;
+        messageClickActions.enable = true;
+      };
+    };
+  };
+}