changelog/10.9.0_2021-12-20/39198 from owncloud/core

changelog/10.9.0_2021-12-20/39198

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Issues

Bugfix: Set file name to download.zip while downloading the whole user directory

Before this PR, selecting all files and folders in the webUI and clicking the
download button, resulted in a file downloaded with the name ".zip".
With this PR the file name is now "download.zip".

https://github.com/owncloud/core/pull/39198
https://github.com/owncloud/core/pull/39239
https://github.com/owncloud/core/issues/39187