* docs(timelines): Correct v40.0.0 stable release date
On the Electron Timelines tutorial page (/docs/latest/tutorial/electron-timelines), there is a clear typo in the release schedule for v40.0.0.
The table currently lists the dates as:
* Alpha: 2025-Oct-30
* Beta: 2025-Dec-03
* **Stable: 2025-Oct-28**
This is logically incorrect, as the 'Stable' release date (Oct 28) is listed *before* both the 'Alpha' (Oct 30) and 'Beta' (Dec 03) dates for the same version.
This appears to be a copy-paste error, as the 'Stable' date (2025-Oct-28) is identical to the 'Stable' date for the v39.0.0 release in the preceding row.
This commit updates the 'Stable' date for v40.0.0 to its correct value, ensuring the timeline is accurate and logical.
* docs: Update v40.0.0 stable date to 2026-Jan-13 based on Chromium schedule