fix: change css class name to prevent unwanted side-effects

packages/concordia-app/src/views/Register/index.jsx

@@ -46,7 +46,7 @@ const Register = () => {
   }, [currentStep, pushNextStep]);
 
   return (
-      <div className="centered form-card-container">
+      <div className="register-centered form-card-container">
           <Card fluid>
               <Card.Content>
                   {

packages/concordia-app/src/views/Register/styles.css

@@ -1,4 +1,4 @@
-.centered {
+.register-centered {
     position: fixed;
     top: 50%;
     left: 50%;