Fix Psych Up

MR Description

• Fixes the move Psych Up according to latest gens.

Notes to acknowledge before testing

• The move works unregardingly of if there's anything to copy.
• The move erases the stat changes of the user.

Tests to realize

• The move displays an animation and a message even if it copies nothing.
• The stats changes of the user are replaced by the target's (can be 0 if no stat change).
• The move copies the Focus Energy of the target to the user.
• The Focus Energy effect is erased from the user if the target doesn't have it.

Sources related to this MR

• Bulbapedia link
• Pokepedia link