Fix Eviolite empowering Pokémon having a Mega Evolution

MR Description

• Fixes a bug that caused Megas to be mistaken as normal Evolutions when applying Eviolite buff.

Before testing

• Calc the damage output from your opponent using the calculator, with and without Eviolite (can be any Pokémon, Eviolite can be simulated by adding +1 def and spedef to the target).

Notes to acknowledge before testing

• A Pokémon with an Evolution and a Mega can get the Eviolite buff.

Tests to realize

Look into the console the final damage dealt by the opponent move against :

• A Pokémon that can Mega, with Eviolite
• A Pokémon that can Mega, without Eviolite (both must be the same -> not reduced)
• A Pokémon that cannot Mega but can evolve, with Eviolite (damage reduced)

Sources related to this MR

• Bulbapedia link
• Pokepedia link
• ClickUp link of the ticket