[Sponsors] AllSponsors block config changes

[jlbellido]

We need to add a new config option to the Allsponsors block:

• Checkbox: Set silver and bronze with as rotation.

Additonally, we need to place this block in all pages as follows:

• [x] Home + all pages except /sponsors : Checked the rotation configuration,
• [x] /sponsors page: Unchecked the rotation configuration.

[jlbellido]

Starting this task

[jlbellido]

To be reviewed by the frontend team in case I broke some styles.

[jlbellido]

Done!