Pretty URL for conversations link

[pmarini-nc]

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Is your feature request related to a problem? Please describe.
It would be great to have the application honour the pretty url settings, when copying the conversation link.
https://docs.nextcloud.com/server/latest/admin_manual/installation/source_installation.html#pretty-urls

The additional index.php token could generate confusion on users.

Describe the solution you'd like

Describe alternatives you've considered

Additional context
Similar issue for the Desktop Client: nextcloud/desktop#3766

[nickvergessen]

Server / core should expose a capability to that clients can know.
But that is missing atm

[ShGKme]

• Fixing the issue on Talk Desktop side requires Expose modRewriteWorking via capabilities to allow pretty URL by clients server#44798

[nickvergessen]

• Patch in fix(capabilities): Expose if mod-rewrite is working via capabilities server#44799