Disable Guest-Name picker for View-Only shares

[kub3let]

Describe the bug
I'm sharing read/view only PDF files via Nextcloud, these are automatically rendered via Collabora when Hide downloads is checked.

On opening these Links you are asked to enter your Guest name, this is generally used for shared editing of documents.

Component: src/components/GuestNamePicker.vue

To Reproduce
Steps to reproduce the behavior:
Share a PDF in Nextcloud with Office (Collabora) enabled and customize the Link

Check:
-> View Only
-> Hide Downloads

Open the link in a private browser tab, not logged into Nextcloud.

Expected behavior
Since the File is View only it should not ask for a Guest name and just use the default.

Server details

Nextcloud 29.0.7
Collabora Office 24.04.7.2

[elzody]

Closing since #4048 has just been merged as of yesterday, and I will build a release soon which will include it all the way back to NC 28.