fix: Update SSO login flow to encode redirect_uri (#5006)

Signed-off-by: Amazingca <autumn@amazingca.dev>

web/src/pages/SignIn.tsx

@@ -48,7 +48,7 @@ const SignIn = observer(() => {
       }
       const authUrl = `${oauth2Config.authUrl}?client_id=${
         oauth2Config.clientId
-      }&redirect_uri=${redirectUri}&state=${stateQueryParameter}&response_type=code&scope=${encodeURIComponent(
+      }&redirect_uri=${encodeURIComponent(redirectUri)}&state=${stateQueryParameter}&response_type=code&scope=${encodeURIComponent(
         oauth2Config.scopes.join(" "),
       )}`;
       window.location.href = authUrl;