Login error fix (#2876)

* install github app button

* general error component

* auto-generate cluster name

* fix button text color

* infra tab for porter user

* fix email error bug

dashboard/src/main/CurrentError.tsx

@@ -133,7 +133,7 @@ const StyledCurrentError = styled.div`
   border-radius: 3px;
   background: #272731cc;
   border: 1px solid #ffffff55;
-  display: none;
+  display: flex;
   align-items: center;
   color: #ffffff;