feat(lib): lua namespace for conversion helpers

lib/booleans.nix

@@ -1,9 +0,0 @@
-# From home-manager: https://github.com/nix-community/home-manager/blob/master/modules/lib/booleans.nix
-{lib}: {
-  # Converts a boolean to a yes/no string. This is used in lots of
-  # configuration formats.
-  yesNo = value:
-    if value
-    then "yes"
-    else "no";
-}

lib/default.nix

@@ -4,4 +4,5 @@
   types = import ./types {inherit lib;};
   languages = import ./languages.nix {inherit lib;};
   nmd = import ./nmd.nix;
+  lua = import ./lua.nix {inherit lib;};
 }

lib/lua.nix

@@ -0,0 +1,12 @@
+# Helpers for converting values to lua
+{lib}: {
+  yesNo = value:
+    if value
+    then "yes"
+    else "no";
+
+  nullString = value:
+    if value == null
+    then "nil"
+    else "'${value}'";
+}

lib/types/plugins.nix

@@ -41,6 +41,7 @@ with lib; let
     "rust-tools"
     "onedark"
     "catppuccin"
+    "dracula"
     "minimap-vim"
     "dashboard-nvim"
     "alpha-nvim"