catch model up to multi-author lines

now the only thing missing is the quote adding UI support - multiauthor
lines can already be added via API

src/web/pages/quotes/add.rs

@@ -153,7 +153,12 @@ pub async fn form(
     for nid in form.authors {
         authors.push(Name::get_by_id(&mut *tx, nid).await.unwrap());
     }
-    let lines = form.lines.into_iter().zip(authors).collect();
+    let lines = form
+        .lines
+        .into_iter()
+        .zip(authors)
+        .map(|(l, a)| (l, vec![a]))
+        .collect();
 
     let timestamp = match NaiveDateTime::parse_from_str(&form.time, "%Y-%m-%dT%H:%M") {
         Ok(ts) => ts,