fix: try_chain try m.to_sym

lib/tallty_import_export/export.rb

@@ -244,7 +244,7 @@ module TalltyImportExport
           index = m.to_i
           r[index] if r.is_a?(Array) || (r.respond_to?(:[]) && index < r.size) # If r is an Array or responds to :[]
         else
-          r.try(m) || r.try(:[], m)
+          r.try(m) || r.try(:[], m) || r.try(:[], m.to_sym)
         end
       rescue StandardError
         nil