Disable chat in onlyoffce

[micbar]

Description

We need a config to disable the chat feature in onlyoffice.

Info from onlyoffice

diff --git a/pkg/app/provider/wopi/wopi.go b/pkg/app/provider/wopi/wopi.go
index cf7bd52b..a0214b26 100644
--- a/pkg/app/provider/wopi/wopi.go
+++ b/pkg/app/provider/wopi/wopi.go
@@ -257,6 +257,11 @@ func (p *wopiProvider) GetAppURL(ctx context.Context, resource *provider.Resourc
                urlQuery.Set("ui", language)      // OnlyOffice
                urlQuery.Set("lang", language)    // Collabora
                urlQuery.Set("UI_LLCC", language) // Office365
+
+               // reva edge
+               // this should be configurable and not this hacky
+               urlQuery.Set("dchat", "1") // disable chat
+
                url.RawQuery = urlQuery.Encode()
                appFullURL = url.String()
        }