fix: search.py after PR #17828 (#18719)

* fix search.py

After the PR #17828 in some cases an "IndexError: list assignment index out of range" error is thrown. This should fix it.

* Update search.py

Yes, that should be even better

* style: formatting

[skip ci]

frappe/desk/search.py

@@ -284,7 +284,8 @@ def to_string(parts):
 			item = list(item)
 			label = item[1]  # use title as label
 			item[1] = item[0]  # show name in description instead of title
-			del item[2]  # remove redundant title ("label") value
+			if len(item) >= 3:
+				del item[2]  # remove redundant title ("label") value
 			results.append({"value": item[0], "label": label, "description": to_string(item[1:])})
 	else:
 		results.extend({"value": item[0], "description": to_string(item[1:])} for item in res)