Increase max-width for .card

The addition of logon text has increased the length of the logon page forcing users to scroll down to continue login process.

https://repo1.dso.mil/platform-one/big-bang/apps/security-tools/keycloak/-/blob/feaf752483b41978a950fae16d25f650f0bb3bb8/development/plugin/src/main/resources/theme/p1-sso/custom-resources/css/new-ui.css#L276

If we remove or update max-width for .card the text will flow better and not require scrolling on most screens.