Fixes

• Fix: sharing: PROPFIND returns now empty owner element in case of a mapped share as clients try PROPFIND on this not accessable href
• Fix: WebUI hide copy button in insecure environments
• Fix: sharing: bday conversion hrefs for vCard filenames ending in v/c/f

Improvements

• Improve: sharing: PROPFIND returns also privilege "write" in case "write-content" and "write-properties" is permitted
• Improve: WebUI decode URL in text field for better readability

Extensions

• Extension: WebUI dark theme with automatic browser/OS color scheme detection
• Add: [web] prefer_browser_login option