CE-3627: Add AlertType enum

src/components/common/AlertBanner/AlertBanner.tsx

 import { Alert, Button, Grid } from "@mui/material";
 import { useUniqueKeys } from "../../../hooks/useUniqueKeys";
 
-export type AlertTypes = "ERROR" | "WARNING" | "INFO" | "SUCCESS";
+enum AlertTypes {
+  INFO = "INFO",
+  SUCCESS = "SUCCESS",
+  WARNING = "WARNING",
+  ERROR = "ERROR"
+}
 type LowercaseAlertTypes = Lowercase<AlertTypes>;
 export interface AlertBannerProps {
   type?: AlertTypes;