Add SSO redirect option for login page

Signed-off-by: Bart van der Braak <bartvdbraak@gmail.com>

src/vector/app.tsx

@@ -89,9 +89,14 @@ export async function loadApp(fragParams: {}, matrixChatRef: React.Ref<MatrixCha
     // XXX: This path matching is a bit brittle, but better to do it early instead of in the app code.
     const isWelcomeOrLanding =
         window.location.hash === "#/welcome" || window.location.hash === "#" || window.location.hash === "";
+    const isLoginPage = window.location.hash === "#/login";
+
     if (!autoRedirect && ssoRedirects.on_welcome_page && isWelcomeOrLanding) {
         autoRedirect = true;
     }
+    if (!autoRedirect && ssoRedirects.on_login_page && isLoginPage) {
+        autoRedirect = true;
+    }
     if (!hasPossibleToken && !isReturningFromSso && autoRedirect) {
         logger.log("Bypassing app load to redirect to SSO");
         const tempCli = createClient({