feat: add Effort Value yields to all Pokémon

[favna]

TODO:

• EV yields Generation 8
• EV yields Generation 7
• EV yields Generation 6
• EV yields Generation 5
• EV yields Generation 4
• EV yields Generation 3
• EV yields Generation 2
• EV yields Generation 1
• Process review comments

[favna]

For testing you can use this query. Replace the pokemon at the bottom with any other and it will give the proper results, including all evolutions and pre-evolutions if applicable.

fragment evYields on EvYieldsEntry {
  hp
  attack
  defense
  specialattack
  specialdefense
  speed
}

fragment dexdetails on DexDetails {
  num
  species
  evYields {
    ...evYields
  }
}

fragment evolutions on DexDetails {
  evolutions {
    ...dexdetails
    evolutions {
      ...dexdetails
    }
  }
  preevolutions {
    ...dexdetails
    preevolutions {
      ...dexdetails
    }
  }
}

{
  getPokemonDetailsByName(pokemon: scorbunny, reverse: true, take: 1) {
    ...dexdetails
    ...evolutions
  }
}