Fix ellipsis character in EditableText component

fix the '...'

Author: LZPxka

frontend/src/components/EditableText.jsx

@@ -39,7 +39,7 @@ function EditableText({id, text, rubric, isPartOf, links, fragment, setFragment,
       updateEditedDocument()
         .then((x) => {
           let existingText = parseFirstPassage(x.text);
-          setEditedText((existingText && `${existingText}\n\n`) + fragment + '…');
+          setEditedText((existingText && `${existingText}\n\n`) + fragment + '...');
           setBeingEdited(true);
           setFragment();
           setHasBeenChanged(true);