Add accessibility labels for Playwright

hiboo/application/templates/application_oidc.html

 <h3>Detailed OpenID Connect settings</h3>
-<dt>{% trans %}Authorization endpoint{% endtrans %}</dt>
-<dd><pre>{{ url_for("sso.oidc_authorize", service_uuid=service.uuid, _external=True) }}</pre></dd>
+<dt id="metadata">{% trans %}OIDC discovery endpoint{% endtrans %}</dt>
+<dd aria-labelledby="metadata"><pre>{{ url_for("sso.oidc_discovery", service_uuid=service.uuid, _external=True) }}</pre></dd>
 
-<dt>{% trans %}Token endpoint{% endtrans %}</dt>
-<dd><pre>{{ url_for("sso.oidc_token", service_uuid=service.uuid, _external=True) }}</pre></dd>
+<dt id="authorization">{% trans %}Authorization endpoint{% endtrans %}</dt>
+<dd aria-labelledby="authorization"><pre>{{ url_for("sso.oidc_authorize", service_uuid=service.uuid, _external=True) }}</pre></dd>
 
-<dt>{% trans %}Userinfo endpoint{% endtrans %}</dt>
-<dd><pre>{{ url_for("sso.oidc_userinfo", service_uuid=service.uuid, _external=True) }}</pre></dd>
+<dt id="token">{% trans %}Token endpoint{% endtrans %}</dt>
+<dd aria-labelledby="token"><pre>{{ url_for("sso.oidc_token", service_uuid=service.uuid, _external=True) }}</pre></dd>
 
-<dt>{% trans %}Client ID{% endtrans %}</dt>
-<dd><pre>{{ service.config["client_id"] }}</pre></dd>
+<dt id="userinfo">{% trans %}Userinfo endpoint{% endtrans %}</dt>
+<dd aria-labelledby="userinfo"><pre>{{ url_for("sso.oidc_userinfo", service_uuid=service.uuid, _external=True) }}</pre></dd>
 
-<dt>{% trans %}Client secret{% endtrans %}</dt>
-<dd><pre>{{ service.config["client_secret"] }}</dd>
+<dt id="clientid">{% trans %}Client ID{% endtrans %}</dt>
+<dd aria-labelledby="clientid"><pre>{{ service.config["client_id"] }}</pre></dd>
+
+<dt id="secret">{% trans %}Client secret{% endtrans %}</dt>
+<dd aria-labelledby="secret"><pre>{{ service.config["client_secret"] }}</dd>

hiboo/application/templates/application_saml.html

 <h3>Detailed SAML settings</h3>
-<dt>{% trans %}SAML Metadata{% endtrans %}</dt>
-<dd><pre>{{ url_for("sso.saml_metadata", service_uuid=service.uuid, _external=True) }}</pre></dd>
+<dl>
+<dt id="metadata">{% trans %}SAML Metadata{% endtrans %}</dt>
+<dd aria-labelledby="metadata"><pre>{{ url_for("sso.saml_metadata", service_uuid=service.uuid, _external=True) }}</pre></dd>
 
-<dt>{% trans %}SSO redirect binding{% endtrans %}</dt>
-<dd><pre>{{ url_for("sso.saml_redirect", service_uuid=service.uuid, _external=True) }}</pre></dd>
+<dt id="redirect">{% trans %}SSO redirect binding{% endtrans %}</dt>
+<dd aria-labelledby="redirect"><pre>{{ url_for("sso.saml_redirect", service_uuid=service.uuid, _external=True) }}</pre></dd>
 
-<dt>{% trans %}ACS{% endtrans %}</dt>
-<dd><pre>{{ service.config["acs"] }}</pre></dd>
+<dt id="acs">{% trans %}ACS{% endtrans %}</dt>
+<dd aria-labelledby="acs"><pre>{{ service.config["acs"] }}</pre></dd>
 
-<dt>{% trans %}IDP certificate{% endtrans %}</dt>
-<dd><pre>{{ service.config["idp_cert"] }}</pre></dd>
+<dt id="idp-cert">{% trans %}IDP certificate{% endtrans %}</dt>
+<dd aria-labelledby="idp-cert"><pre>{{ service.config["idp_cert"] }}</pre></dd>
 
-<dt{% trans %}>SP certificate{% endtrans %}</dt>
-<dd><pre>{{ service.config["sp_cert"] }}</pre></dd>
+<dt id="sp-cert">{% trans %}SP certificate{% endtrans %}</dt>
+<dd aria-labelledby="sp-cert"><pre>{{ service.config["sp_cert"] }}</pre></dd>
 
-<dt>{% trans %}SP private key{% endtrans %}</dt>
-<dd><pre>{{ service.config["sp_key"] }}</pre></dd>
+<dt id="sp-key">{% trans %}SP private key{% endtrans %}</dt>
+<dd aria-labelledby="sp-key"><pre>{{ service.config["sp_key"] }}</pre></dd>
+</dl>