Add feature to reposition mistakes functionality after text replacement

online-editor.js

@@ -368,6 +368,10 @@ class BesEditor {
       text.substring(match.offset + match.length)
     el.textContent = newText
     BesEditor.clearSingleMistake(editor, el, rect)
+    // In my opinion, this approach provides the most straightforward solution for repositioning mistakes after a change.
+    // It maintains reasonable performance as it only checks the block element that has been modified,
+    // rather than re-evaluating the entire document or a larger set of elements.
+    editor.proof(el)
   }
 
   // This function clears a single mistake