[Bug] Richdocuments interactive widget behavior

[Antreesy]

Describe the bug Several things are noticed when using an interactive widget (posting internal link to the file) in Talk:

• [ ] z-index value is high, widget shown above all other interactive elements: https://github.com/nextcloud/richdocuments/blob/4920f50588bf8a16636b8b3f552e36387fccb261/src/view/Office.vue#L510

• [ ] when mounted, widget closes the sidebar: https://github.com/nextcloud/richdocuments/blob/4920f50588bf8a16636b8b3f552e36387fccb261/src/view/Office.vue#L277

To Reproduce Steps to reproduce the behavior:

1. Go to Files -> Sharing tab -> Internal link
2. Go to Talk -> Any chat
3. Post internal link to the chat
4. Observe bugs described

Expected behavior

• z-index value around 10
• sidebar-close event is not triggered, if mounted as interactive widget

Screenshots

1	2

Client details:

• OS: Win 11
• Browser: Chrome
• Version: 30 (c.nc.com)
• Device: Web