Use text constants where appicable

Hold off doing this on 'f6' on bank02 L4585 and 'a2' on duel L2096, though these two look like texts too

src/home/duel.asm

@@ -1469,7 +1469,7 @@ HandleConfusionDamageToSelf:
 	pop hl
 	push hl
 	call LoadTxRam3
-	ld hl, $50 ; DamageToSelfDueToConfusionText
+	ld hl, DamageToSelfDueToConfusionText
 	call DrawWideTextBox_PrintText
 	ld a, ATK_ANIM_CONFUSION_HIT
 	ld [wLoadedAttackAnimation], a
@@ -1916,7 +1916,7 @@ PrintKnockedOut:
 	ld h, [hl]
 	ld l, a
 	call LoadTxRam2
-	ld hl, $84 ; WasKnockedOutText
+	ld hl, WasKnockedOutText
 	call DrawWideTextBox_PrintText
 	ld a, 40
 .wait_frames
@@ -2060,7 +2060,7 @@ Func_19e1::
 	cp $1
 	jr z, .no_effect_from_status
 	call Func_19fd
-	ld hl, $1a1 ; WasUnsuccessfulText
+	ld hl, WasUnsuccessfulText
 	call DrawWideTextBox_PrintText
 	scf
 	ret
@@ -2215,5 +2215,5 @@ CopyOpponentName::
 	jr z, .print_player2
 	jr CopyPlayerName.loop
 .print_player2
-	ld hl, $0097 ; Player2Text
+	ld hl, Player2Text
 	jp CopyText

src/home/menus.asm

@@ -1048,7 +1048,7 @@ HandleYesOrNoMenu::
 ; prints "YES NO" at de
 PrintYesOrNoItems::
 	call AdjustCoordinatesForBGScroll
-	ld hl, $30 ; YesOrNoText
+	ld hl, YesOrNoText
 	call InitTextPrinting_ProcessTextFromID
 	ret
 

src/home/serial.asm

@@ -498,7 +498,7 @@ DuelTransmissionError::
 	ld l, a
 	ld h, 0
 	call LoadTxRam3
-	ld hl, $0057 ; TransmissionErrorTryAgainText
+	ld hl, TransmissionErrorTryAgainText
 	call DrawWideTextBox_WaitForInput
 	ld a, -1
 	ld [wDuelResult], a