editor: Do not panic on `tab_size > 16`, cap it at 128 (#38994)

Fixes ZED-1PT
Fixes ZED-1PW
Fixes ZED-1G2

Release Notes:

- Fixed Zed panicking when the `tab_size` is set higher than 16
fbdf5d4df4Lukas Wirth committed on 9/26/2025, 10:13:16 PM· committed by GitHubparent837f282
4 files changedLine totals unavailable