fix(editor): Prevent race condition and ensure correct list continuation on Enter

Author: jonfk

web/src/components/MemoEditor/Editor/index.tsx

@@ -169,6 +169,10 @@ const Editor = forwardRef(function Editor(props: Props, ref: React.ForwardedRef<
       if (event.shiftKey || event.ctrlKey || event.metaKey || event.altKey) {
         return;
       }
+      // Prevent a newline from being inserted, so that we can insert it manually later.
+      // This prevents a race condition that occurs sometimes where the newline can be 
+      // inserted before the insertText.
+      event.preventDefault()
 
       const cursorPosition = editorActions.getCursorPosition();
       const prevContent = editorActions.getContent().substring(0, cursorPosition);
@@ -194,7 +198,7 @@ const Editor = forwardRef(function Editor(props: Props, ref: React.ForwardedRef<
         insertText += `${Number(number) + 1}. `;
       }
       if (insertText) {
-        editorActions.insertText(insertText);
+        editorActions.insertText("\n" + insertText);
       }
     }
   };