Bogdan Chadkin eb0bc5ff77 Support pasting embed templates (#1936) ...

Here refactored copy paste plugin system to try each plugin until it
succeeds. This way we can have multiple solutions to copy paste from
plain text. For example embed template is hand written text and should
succeed before markdown starts parsing it.

```json
{
  "@webstudio/template": [
    {
      "type": "instance",
      "component": "Box",
      "children": [
        { "type": "text", "value": "Hello, I'm Box!" }
      ]
    }
  ]
}
```

2023-07-16 13:38:07 +03:00

..

builder

Support pasting embed templates (#1936)

2023-07-16 13:38:07 +03:00