Core/Misc: Rename void storage related prep. statements to comply with standards

src/server/shared/Database/Implementation/CharacterDatabase.h

@@ -529,9 +529,9 @@ enum CharacterDatabaseStatements
     CHAR_SEL_CHAR_PET_BY_ENTRY_AND_SLOT,
     CHAR_UPD_CHAR_LIST_SLOT,
 
-    CHAR_SEL_VOID_STORAGE,
-    CHAR_REP_VOID_STORAGE_ITEM,
-    CHAR_DEL_VOID_STORAGE_ITEM_BY_SLOT,
+    CHAR_SEL_CHAR_VOID_STORAGE,
+    CHAR_REP_CHAR_VOID_STORAGE_ITEM,
+    CHAR_DEL_CHAR_VOID_STORAGE_ITEM_BY_SLOT,
 
     MAX_CHARACTERDATABASE_STATEMENTS,
 };