Traducción de library/sys (#1612)

* traduccion library/sys
* solve typos
* add frozenset to dict
* fix issues with glosary
* fix issues with files
* quitando entradas que no existen y adjustando números de línea
* Update library/sys.po

Co-authored-by: alex <alexjk6697@gmail.com>
Co-authored-by: Cristián Maureira-Fredes <Cristian.Maureira-Fredes@qt.io>

Author: Alex0jk

dictionaries/library_sys.txt

@@ -7,4 +7,5 @@ replace
 pth
 pydebug
 surrogateescape
-enumerador
+enumerador
+fronzenset