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

Currently, the main site header includes global links to Help, Meetings, and Activity. These links are not essential for most installations and in addition, they occupy valuable space in the header, limiting our ability to display other elements such as the language selector or the hamburger menu.

Describe the solution you'd like

Remove the links to Help, Meetings, and Activity from the header.

Describe alternatives you've considered

An alternative could be to allow admins to configure these links, but this adds complexity to the configuration interface and does not offer significant value. A cleaner, minimal default header is preferred.

Additional context

This change is aligned with other efforts to simplify and improve Decidim’s frontend navigation.

Does this issue impact users' private data?

No, it does not involve processing personal data.

Acceptance Criteria

• Given I am a visitor or participant, when I view any page on the site, I do not see the Help link in the header.
• Given I am a visitor or participant, when I view any page on the site, I do not see the Meetings link in the header.
• Given I am a visitor or participant, when I view any page on the site, I do not see the Activity link in the header.