try to better highlight donations and sponsorships options ...

... and to better explain why they are required.

Please don't say "someone else will help the project, I'll just use it"

Signed-off-by: Nicola Murino <nicola.murino@gmail.com>

httpd/webadmin.go

@@ -260,6 +260,7 @@ type setupPage struct {
 	Username             string
 	HasInstallationCode  bool
 	InstallationCodeHint string
+	HideSupportLink      bool
 	Error                string
 }
 
@@ -740,6 +741,7 @@ func (s *httpdServer) renderAdminSetupPage(w http.ResponseWriter, r *http.Reques
 		Username:             username,
 		HasInstallationCode:  installationCode != "",
 		InstallationCodeHint: installationCodeHint,
+		HideSupportLink:      hideSupportLink,
 		Error:                error,
 	}