Implement e-mail template for shared links mail

The user has an option in the Zimlet Preferences to enable a template for outgoing mails that are use when sharing links.

The release is sponsored by https://www.bktech.com.br/

Implement expiration date for link shares

This release implements expiration date for link shares.

As of this release public link shares will also get updated. So if the user adds a public link share on an item that was shared before, the last set preferences will be applied (password/expiry date).

In the older version, the first set password always remained.

This release was sponsored by www.bktech.com.br.

fix regression in Internet Explorer 11

fix regression in Internet Explorer 11

Fix icons

Fix regression from 0.8.8

Fix size and modified column

Fixes a regression from the last release

Add OnlyOffice Support

Added an optional right-click menu action to edit docx/xlsx/pptx
files in the Nextcloud/ownCloud OnlyOffice app.

All the heavy lifting is in Nextcloud/ownCloud OnlyOffice app,
but it is still nice to jump straight from Zimbra into OnlyOffice.

Edit markdown and text documents directly from Zimbra

Edit markdown and text documents directly from Zimbra

Support markdown document preview

Support markdown document preview

Fix issue in internal link shares

An encoding issue in internal link shares is fixed.

add config option for compatibility with other Zimlets (RMail)

add config option owncloud_zimlet_disable_auto_upload_on_exceed …
When true, the user will not be asked to use WebDAV if attachment size exceeds Zimbra limit. This feature is for compatibility with other Zimlets (RMail)