Display the site home, dashboard and course blocks in the app.

For now, we should mimic the mobile browser view:

• Display blocks at the bottom in narrow screens (maybe initially collapsed?)
• Display blocks at the right (when there is space available) like desktop or tablet

Note also that blocks can be disabled via the "Disabled features" option in Moodle 3.7 onward.

We need to discuss which blocks we can't skip showing (like the participants one because we already have the option in the top menu)