- update to 4.18.0:
* build: Bump requirements for Xfce 4.18
* bump copyright to 2022
* docs: Fix return value of xfce_str_replace
* Update COPYING
* Bump GObject Introspection minim version to 1.66
* docs: Add missing index of deprecated symbols
* docs: Fix broken links
* docs: Fix "unused declarations" warning
* docs: Update `.gitignore`
* Remove limit on the size of configuration file line
* Fix documentation of 'xfce_str_is_empty'
* Clean the build system and use the new XDT_VERSION_INIT
* Silence `-Wanalyzer-null-dereference` warnings
* doc: Fix typo in `xfce_*_append_quoted()`
* xfce-miscutils: Fix `deadcode.DeadStores` warning from `scan-build`
* i18n: Make sure to set locale according to environment
* Translation Updates:
Azerbaijani, Chinese (China), Georgian, Greek
* Memo for future devs: Deprecate xfce_str_replace
* Fix document generation error
* Remove duplicate xfce_str_is_empty
* Move xfce_append_quoted () to xfce-string
* Remove invalid custom ngettext() macro
* Fix some GObject introspection warnings
* Add missing G_BEGIN_DECLS and G_END_DECLS
* Translation Updates:
Catalan, Galician, Italian
* Create new function xfce_create_shared_thumbnail_path
* usage of g_file_peek_path requires glib 2.56