Merge pull request #147 from bf2fc6cc711aee1a0c2a/error

fix: improve error messages for error handling

Author: wtrocki

source/rhoas/src/main/java/com/openshift/cloud/controllers/ConditionUtil.java

@@ -257,11 +257,11 @@ public static String getStandarizedErrorMessage(int statusCode) {
       case 503: // SC_UNAVAILABILE
         return "Service unavailable at the moment";
       case 500: // SC_INTERNAL_SERVER_ERROR:
-        return "Unknown server error.";
+        return "Unknown server error";
       case 400: // HttpStatus.SC_BAD_REQUEST:
-        return "Invalid request";
+        return "Provided user input is invalid";
       case 401: // HttpStatus.SC_UNAUTHORIZED:
-        return "Auth Token is invalid.";
+        return "Cannot authenticate user with the service";
       case 403: // HttpStatus.SC_FORBIDDEN:
         return "User not authorized to access the service";
       default: