Made error case for email in use display correctly in front end (#158)

client/src/components/Auth/AuthenticationResponse.tsx

@@ -27,23 +27,22 @@ export const inValidEmailResponse = new CustomError("Invalid Email", "Please pro
 
 //Function that decodes the error code
 const decodeFirebaseError = (error: FirebaseError) => {
-  if(error.code === "auth/missing-email" || error.code === "auth/invalid-email") {
-    return "Please provide a valid email address";
+  switch (error.code) {
+    case "auth/missing-email" || "auth/invalid-email":
+      return "Please provide a valid email address";
+    case "auth/weak-password":
+      return "Password must be 6 characters or more";
+    case "auth/missing-password":
+      return "Please provide a password";
+    case "auth/invalid-credential":
+      return "The password or email is incorrect";
+    case "auth/too-many-requests":
+      return "Too many requests, please try again later";
+    case "auth/email-already-in-use":
+      return "Email already in use";
+    default:
+      return "Unknown error";
   }
-
-  if(error.code === "auth/weak-password") {
-    return "Password must be 6 characters or more";
-  }
-
-  if(error.code === "auth/missing-password") {
-    return "Please provide a password";
-  }
-
-  if(error.code === "auth/invalid-credential") {
-    return "The password or email is incorrect";
-  }
-
-  return "Unknown error"
 }
 
 const decodeCustomError = (error: CustomError) => {