Changelog:

• Increase width of size bar depending on terminal size.
• Set/increment $NCDU_LEVEL variable when spawning a shell.
• Indicate whether apparent size or disk usage is being displayed.
• Display setuid, setgid and sticky bits in file flags in extended mode.
• Fix error handling while reading --exclude-from file.
• Improve JSON import to allow for several future extensions to the format.
• Export link count in JSON dumps.
• Don't export inode in JSON dumps for non-hardlinks.

Signed-off-by: Algent Albrahimi <algent@protonmail.com>

Scan my system and check how much space are using my system direcories:
$ ncdu /
$ ncdu / --exclude-kernfs
$ ncdu / --exclude-caches
$ ncdu / --exclude home