14.0.0-alpha.15

Breaking

• Adjusted main Logo component styling @sneridagh

For a more information, please read the upgrade guide
https://docs.voltocms.com/upgrade-guide/

Feature

• Add volto-guillotina addon to core @sneridagh

Internal

• Improved developer documentation. Proof read several chapters, most importantly the upgrade guide @ichim-david
• Use Plone logo (Closes #2632) @ericof
• Updated Brazilian Portuguese translations @ericof
• Footer: Point to plone.org instead of plone.com @ericof
• Fix "make start-frontend" @tisto
• Update all the tests infrastructure for the new volto-guillotina addon @sneridagh