Merge pull request #13178 from steelsojka/fix-empty-main-query-file

fix(treesitter): account for no main query file

runtime/lua/vim/treesitter/query.lua

@@ -25,7 +25,7 @@ local function filter_files(file_list)
     end
   end
 
-  return { main, unpack(after) }
+  return main and { main, unpack(after) } or after
 end
 
 local function runtime_query_path(lang, query_name)