feat(treesitter): bundle markdown parser and queries (#22481)

* bundle split Markdown parser from https://github.com/MDeiml/tree-sitter-markdown
* add queries from https://github.com/nvim-treesitter/nvim-treesitter/tree/main
* upstream `#trim!` and `#inject-language!` directives

Co-authored-by: dundargoc <gocdundar@gmail.com>

test/functional/treesitter/parser_spec.lua

@@ -783,7 +783,7 @@ int x = INT_MAX;
         return list
         ]]
 
-        eq({ 'gsub!', 'offset!', 'set!' }, res_list)
+        eq({ 'gsub!', 'inject-language!', 'offset!', 'set!', 'trim!' }, res_list)
       end)
     end)
   end)