Add client UI to select JAMS as login method

GitLab: #136

Change-Id: I4062d83b9fd43657aaa4d2f60a448fc55f486e72
diff --git a/client/src/utils/errors.ts b/client/src/utils/errors.ts
index 30ec7aa..7510fbd 100644
--- a/client/src/utils/errors.ts
+++ b/client/src/utils/errors.ts
@@ -18,3 +18,5 @@
 export class UsernameNotFound extends Error {}
 
 export class InvalidPassword extends Error {}
+
+export class InvalidCredentials extends Error {}