fix: new typing chars are not saved after Enter pressed

This happens when writing fast or on an old device, the reason is that
the user can still write something after Enter pressed and before the
data is transacted and UI refreshed.

src/main/frontend/state.cljs

@@ -121,6 +121,7 @@
       :block/component-editing-mode?         false
       :editor/op                             (atom nil)
       :editor/start-pos                      (atom nil)
+      :editor/async-unsaved-chars            (atom nil)
       :editor/hidden-editors                 #{} ;; page names
       :editor/draw-mode?                     false
 
@@ -314,8 +315,7 @@
       :ui/select-query-cache                 (atom {})
       :favorites/updated?                    (atom 0)
       :db/async-query-loading                (atom #{})
-      :db/async-queries                      (atom {})
-      })))
+      :db/async-queries                      (atom {})})))
 
 ;; Block ast state
 ;; ===============