Max-width on Comment widget contents

[ulugbekna]

I wish we had max-width on the comment itself and the reply input box because it's very wide otherwise. It would also make it easier to use the collapse, etc buttons if they were closer to the center.

See:

Version: 1.109.0-insider (Universal)
Commit: acc954bd84a5cc0ec2a896706142b3ab5ad5a99c
Date: 2026-01-20T05:02:21.248Z
Electron: 39.2.7
ElectronBuildId: 13098910
Chromium: 142.0.7444.235
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Darwin arm64 25.2.0

GHPR 0.127.2026012004