Extract auth header into a separate component

frontend/src/ui/components/Auth.tsx

@@ -8,4 +8,32 @@ export function AuthContainer({ children }: { children?: React.ReactNode }) {
             </div>
         </div>
     )
+}
+
+export type IconType = "filled" | "outlined";
+
+export interface AuthHeaderIcon {
+    name: string;
+    type: IconType
+}
+
+export interface AuthHeaderProps {
+    title: string;
+    icon: string | AuthHeaderIcon;
+    subtitle: string;
+}
+
+export function AuthHeader({ title, icon, subtitle }: AuthHeaderProps) {
+    const iconType = typeof icon == "string" ? "filled" : icon.type;
+    const iconName = typeof icon == "string" ? icon : icon.name;
+
+    return (
+        <div className="auth-header">
+            <h2>
+                <span className={`material-symbols ${iconType} large`}>{iconName}</span> 
+                {title}
+            </h2>
+            <p>{subtitle}</p>
+        </div>
+    )
 }