fix(logout): use the proper invalidation flow for logout

apps/web/src/components/navbar/navbar.tsx

@@ -105,7 +105,8 @@ export const Navbar = () => {
                   <DropdownItem
                     value="Log out"
                     onClick={() => {
-                      location.replace(`${getEnvVariable('GP_AUTH_URL')}/outpost.goauthentik.io/sign_out`);
+                      const current = new URL(window.location.href);
+                      location.replace(`${getEnvVariable('GP_AUTH_URL')}if/flow/default-invalidation-flow/?next=${current.toString()}`);
                     }}
                   />
                   {authCache.authorization?.demoUser?.R && (