Release v2.11.0

This release fixes a regression bug from ncdu 2.10.0. It also updates
project URLs in the documentation.

Fixes

Fixed a regression bug in the scan logic, where unexpected or
out-of-bounds file metadata (such as "negative timestamps")
could cause the tool to crash. The tool now safely
handles these cases again instead of crashing.

Technical note: This regression was caused by an invalid
internal integer conversion. On builds without strict safety
guards, such as official release binaries, this resulted in
unreliable behavior. Conversely, builds with safety panics
active instantly halted to prevent data corruption.

Changes

Update documentation ("man-pages") to point to the new website.
Update "ChangeLog" to point to the location of the new release notes.

GitHub generated notes

Milestone: https://github.com/BratishkaErik/ncdu/milestone/1

What's Changed

• Handle negative mtime and update docs by @BratishkaErik in #4

Full Changelog: v2.10.1...v2.11.0