[BUG] Show toast errors when the UI aync request comes back with error

[ps48]

What is the bug?
Show toast errors when the UI aync request comes back with error

How can one reproduce the bug?
Steps to reproduce the behavior:

1. Block the flint request index

PUT /.query_execution_request_glue_3/_settings
{
  "settings": {
    "index.blocks.read_only": true,
    "index.blocks.write": true
  }
}

// check settings is updated
GET /.query_execution_request_glue_3/_settings

// check index stats
GET /.query_execution_request_glue_3/_stats

2. Run a query on this datasource, UI is stuck with no error.

What is the expected behavior?
UI should pop out a toast message

What is your host/environment?

• OS: AL2
• Version 2.11
• Plugins: Workbench

Do you have any screenshots?
If applicable, add screenshots to help explain your problem.

Do you have any additional context?
Add any other context about the problem.