Everything should be a block?

Hey! I have not found a better place to give some feedback about the parser. Let me know if I should move these to another place (P2 or anything else).

My question/suggestion is whether we should consider everything as a block and drop the `type=text`

Should we replace:

```js
{
"type": "text",
"value": "\n\n### Text\n"
}
```

By something like

```js
{
"type": "WP_Block",
"blockType": "text",
"attrs": {},
"startText": "",
"endText": "",
"content": "\n\n### Text\n"
}
```

My reasoning here is whether we should have a difference between texts and block texts.
A good side effect if we parse them in the exact same way is the simplification of the Block Editor UI.

No files, tests, or parser entry points are named in the issue. Review the parser's current representations for text and blocks, then decide whether a unified block shape should be specified; done means recording an agreed direction or closing the proposal with a clear rationale.

Written by the indexing model from the issue text.