Fill item body with parsed blocks instead of rich text

[EndBug]

Is your feature improvement related to a problem? Please describe.

As of now, the only child of each database entry is a paragraph with the rich text parsed from the issue. This makes the body redundant since it displays the exact same text as the Body column of the database.

Describe the solution you'd like

We could actually parse blocks from the issue body: this would result in a more accurate result.
We could also use this when there are unsupported elements that cannot be converted to rich text but can be shown as blocks: we can just fill the children and then write a note in the Body property.

Describe alternatives you've considered

No response

Additional context

No response