fix parser incompatibilities

[itsjavi]

the parser is slightly incompatible with original :

• ~It uses "nickname" where Pokemon Showdown (PS) uses "name"~
• ~it uses "name" where PS uses "species"~
• It's missing dynamax level and gigantamax info
• probably some other inconsistencies (review the original PS implementation again)

For reference, take a look at the original implementation: https://github.com/smogon/pokemon-showdown-client/blob/fbe9c2d/js/storage.js#L1099

[itsjavi]

actually the name/nickname was parsed correctly already