Typst writer: add blank line in definition lists with multiple definitions.

See discussion #9704.

src/Text/Pandoc/Writers/Typst.hs

@@ -324,7 +324,7 @@ defListItemToTypst (term, defns) = do
   modify $ \st -> st{ stEscapeContext = NormalContext }
   defns' <- mapM blocksToTypst defns
   return $ nowrap ("/ " <> term' <> ": " <> "#block[") $$
-            chomp (vcat defns') $$ "]"
+            chomp (vsep defns') $$ "]"
 
 listItemToTypst :: PandocMonad m => Int -> Doc Text -> [Block] -> TW m (Doc Text)
 listItemToTypst ind marker blocks = do

test/writer.typst

@@ -462,11 +462,13 @@ Multiple definitions, tight:
 
 / apple: #block[
 red fruit
+
 computer
 ]
 
 / orange: #block[
 orange fruit
+
 bank
 ]