Scrolling causes display issues: blank areas appear

## Description

Scrolling in a Jupyter Notebook often leads to display issues, for example large blank areas, or scrolling issues.

## Reproduce

1. Open a relatively large document (at least 20 screens high)
2. Try scrolling all the way up or down.

## Expected behavior

## Context

- Operating System and version: macOS Sequoia 15.2
- Browser and version: Microsoft Edge Version 133.0.3065.92

- Jupyter Notebook version: 7.3.2

Troubleshoot Output

Paste the output from running `jupyter troubleshoot` from the command line here.

You may want to sanitize the paths in the output.

Command Line Output

Paste the output from your command line running `jupyter notebook` here, use `--debug` if possible.

Browser Output

Paste the output from your browser Javascript console here, if applicable.

Reproduce the scrolling behavior in Jupyter Notebook 7.3.2 using a document at least 20 screens high, then inspect the browser output and run `jupyter troubleshoot` if needed. Compare scrolling to the expected continuous display and verify that blank areas or other scrolling artifacts no longer appear.

Written by the indexing model from the issue text.