newsraft: update to 0.24

- implement per-feed settings
- implement per-feed binds
- add reload-period setting
- add item-limit setting
- add pager-centering setting
- add mark-item-unread-on-change setting
- add item-content-link-format setting
- add goto-feed action
- add sort-by-important action
- add support for setting lines without set keyword at the beginning
- apply search filter to item content as well
- rebind mark-important and mark-unimportant to f and F
- fallback to updated date in item entries for publication date
  specifier
- remove send-user-agent-header setting
- make use of gperf hashing to slightly speed up feed parsing
- make use of CC environment variable for compiler in tests
- small improvements and reforms

https://codeberg.org/newsraft/newsraft/releases/tag/newsraft-0.24


(ktnb)