Modify "FillPartnerParty" to work with "Everything Customized"

[AlexOn1ine]

Description

Fixing my mistake when I added the case F_TRAINER_PARTY_EVERYTHING_CUSTOMIZED in FillPartnerParty.
The Prolbem was that the partner pokemon where created in the first 3 slots instead of the last 3 which removed the players team.

The changes were tested with this script:

MultiBattle_EventScript_ChoosePartyForMultiBattle::
	special SavePlayerParty
	fadescreen FADE_TO_BLACK
	special ChooseHalfPartyForBattle
	waitstate
	goto_if_ne VAR_RESULT, 0, MultiBattle_EventScript_2VS2
	special LoadPlayerParty
	goto MultiBattle_EventScript_Won_Lost

MultiBattle_EventScript_2VS2::
	multi_2_vs_2 TRAINER_ROBERT_1, MultiBattle_Generic_Text, TRAINER_COLIN, MultiBattle_Generic_Text, TRAINER_BRENDAN_ROUTE_103_TORCHIC, TRAINER_BACK_PIC_BRENDAN
	specialvar VAR_RESULT, GetBattleOutcome
	goto_if_eq MultiBattle_EventScript_Won_Lost
	goto MultiBattle_EventScript_Won_Lost

MultiBattle_EventScript_Won_Lost::
	msgbox MultiBattle_Generic_Text, MSGBOX_AUTOCLOSE
	end

MultiBattle_Generic_Text:
	.string "Generic Text$"

TrainerMon:

static const struct TrainerMonCustomized sParty_BrendanRoute103Torchic[] = {
    {
    .species = SPECIES_MUDKIP,
    .lvl = 5,
    .isShiny = TRUE,
    .gender = TRAINER_MON_FEMALE,
    .ball = ITEM_MASTER_BALL,
    .ability = ABILITY_TORRENT,
    .friendship = 42,
    .heldItem = ITEM_MYSTIC_WATER,
    .iv = TRAINER_PARTY_IVS(25,26,27,28,29,30),
    .ev = TRAINER_PARTY_EVS(252, 0, 0, 252, 4, 0),
    .nature = TRAINER_PARTY_NATURE(NATURE_ADAMANT),
    .moves = {MOVE_EARTHQUAKE, MOVE_WATERFALL, MOVE_ROCK_SLIDE, MOVE_TACKLE},
    .nickname = COMPOUND_STRING("Bubbles"),
    },
    {
    .species = SPECIES_MUDKIP,
    .ability = ABILITY_DAMP,
    .moves = {MOVE_EARTHQUAKE},
    .lvl = 15,
    }
};

Clip that shows a tag battle with the changes:
https://user-images.githubusercontent.com/93446519/230474584-22facc51-5744-4a00-9d71-b670de28606d.mp4

Discord contact info

AlexOnline#2331