feat(plugins): add screenkey

plugins/screenkey/default.nix

@@ -0,0 +1,10 @@
+# homepage: https://github.com/NStefan002/screenkey.nvim
+{ lib, pkgs, ... }:
+
+{
+  extra = {
+    packages = [
+      (import ./package.nix { inherit lib pkgs; })
+    ];
+  };
+}

plugins/screenkey/package.nix

@@ -0,0 +1,17 @@
+{ pkgs, ... }:
+
+let
+  version = "2.1.0";
+in
+pkgs.vimUtils.buildVimPlugin {
+  inherit version;
+
+  name = "screenkey.nvim";
+
+  src = pkgs.fetchFromGitHub {
+    owner = "NStefan002";
+    repo = "screenkey.nvim";
+    rev = "v${version}";
+    hash = "sha256-kdZ5GMFyKbzHEn/Bm4r76vauPillvbKJX7yI8MJxGEo=";
+  };
+}