Merge pull request #498 from NotAShelf/fix-mdpw-ft

preview/markdown-preview: convert `mkdp_filetypes` to correct format

modules/plugins/utility/preview/markdown-preview/config.nix

@@ -4,8 +4,8 @@
   lib,
   ...
 }: let
-  inherit (lib.strings) concatMapStringsSep;
   inherit (lib.modules) mkIf;
+
   cfg = config.vim.utility.preview.markdownPreview;
 in {
   config = mkIf cfg.enable {
@@ -15,7 +15,7 @@ in {
       mkdp_auto_start = cfg.autoStart;
       mkdp_auto_close = cfg.autoClose;
       mkdp_refresh_slow = cfg.lazyRefresh;
-      mkdp_filetypes = [(concatMapStringsSep ", " (x: "'" + x + "'") cfg.filetypes)];
+      mkdp_filetypes = cfg.filetypes;
       mkdp_command_for_global = cfg.alwaysAllowPreview;
       mkdp_open_to_the_world = cfg.broadcastServer;
       mkdp_open_ip = cfg.customIP;