fix(skymp5-client): fix error in magicSyncService.ts

[Pospelove]

[!IMPORTANT] Fixes logic in magicSyncService.ts to use EquippedItemType.Spell instead of deprecated EquippedItemType.SpellOrScroll.

• Behavior:
  • Fixes logic in isAnyMagicStuffEquiped() in magicSyncService.ts to use EquippedItemType.Spell instead of EquippedItemType.SpellOrScroll.
  • Updates comment to reflect that Spell is now the correct term, replacing the deprecated SpellOrScroll.

^{This description was created by for 05f7512beaa35b4b7c920ca561b73a5f45edba1e. It will automatically update as commits are pushed.}