feat(languages: move markdown and tidal to languages module)

modules/languages/markdown/config.nix

@@ -0,0 +1,24 @@
+{
+  pkgs,
+  config,
+  lib,
+  ...
+}:
+with lib;
+with builtins; let
+  cfg = config.vim.languages.markdown;
+in {
+  config = mkIf cfg.enable (mkMerge [
+    (mkIf cfg.glow.enable {
+      vim.startPlugins = ["glow-nvim"];
+
+      vim.globals = {
+        "glow_binary_path" = "${pkgs.glow}/bin";
+      };
+
+      vim.configRC.glow = nvim.dag.entryAnywhere ''
+        autocmd FileType markdown noremap <leader>p :Glow<CR>
+      '';
+    })
+  ]);
+}