Make sure when focusing to a section of the document, the heading is not blocked by anything (newspaper header is blocking now)

[SalvaZaraes]

Description:
In the desktop app, the focus button (used to jump to a specific heading within a document) does not function as expected. Clicking it does not take the user to the designated heading.

Steps to Reproduce:
Open a document in reading mode on the desktop app.
Use the focus button to jump to a heading.

Expected Behavior:
Clicking the focus button should scroll the view to the specified heading within the document.

[ericvicenti]

I just fixed this on desktop- the focus button has been disabled but the block is highlighted and scrolls when you click it

4add0b5

@horacioh the one remaining problem is the scroll-to offset. If you have a newspaper header and you click on a short block from the outline, the block scrolls behind the header and can't be seen