feat: restructure and move apps into their own configs (#2)

home/programs/ncmpcpp.nix

@@ -0,0 +1,16 @@
+{pkgs, ...}: {
+  programs.ncmpcpp = {
+    enable = true;
+    bindings =
+      pkgs.lib.attrsets.mapAttrsToList (key: value: {
+        key = key;
+        command = value;
+      }) {
+        j = "scroll_down";
+        k = "scroll_up";
+        J = ["select_item" "scroll_down"];
+        K = ["select_item" "scroll_up"];
+      };
+    package = pkgs.ncmpcpp;
+  };
+}