Extend the NEWS file, make a new version (0.4.0)

Author: hsonne

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: kwb.nextcloud
 Title: R Package for Accessing Nextcloud Using WebDAV API
-Version: 0.3.0.9000
+Version: 0.4.0
 Authors@R: c(
     person("Michael", "Rustler", , "michael.rustler@kompetenz-wasser.de", role = c("aut", "cre"),
            comment = c(ORCID = "0000-0003-0647-7726")),

NEWS.md

@@ -1,3 +1,13 @@
+# [kwb.nextcloud 0.4.0](https://github.com/KWB-R/kwb.nextcloud/releases/tag/v0.4.0) <small>2024-10-15</small>
+
+* Add `file_exists()`
+* Add `get_file_versions()`
+* Fix bug in `path_to_file_href()` that occurred when a user name contained 
+  spaces. Document and export this function.
+* `download_files()`: Add argument `dbg`
+* `get_version_info()`: Add argument `dbg`
+* Deprecate `list_file_versions()`
+
 # [kwb.nextcloud 0.3.0](https://github.com/KWB-R/kwb.nextcloud/releases/tag/v0.3.0) <small>2021-06-03</small>
 
 * Add `move_file_or_folder()`: see [Moving files and folders](https://docs.nextcloud.com/server/latest/developer_manual/client_apis/WebDAV/basic.html#moving-files-and-folders-rfc4918)