Canvis a "Welcome, Decidim"

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

According to new research from New Public, flourishing digital spaces excel at 4 pillars: making people feel welcome, facilitating connections between people, helping people understand something, and giving people the chance to act.

Decidim is best at act, enables connect, struggles with understand, does almost nothing to WELCOME.

Describe the solution you'd like

Upgrade homepage and landing page block to integrate the preferences and fields from the user.

Upgrade Last activity to only show activity related to areas a user has said they’re interested in.

Upgrade meetings block similarly.

New block: welcome user by name.

New block: crowdsourced blog posts the same way we do meetings.

Describe alternatives you've considered

N/A

Additional context

N/A

Could this issue impact on users private data?