Reworked sidebar + app shell

• New topbar
All high-level pages (Dashboard, Documents, Templates, Imports, etc.) now include a new topbar that hosts the Intercom trigger, along with global actions like Search and Create.

• Favorites & Recents
The sidebar now includes dedicated sections for:
– recently visited documents/templates
– favorited documents/templates

You can favorite documents and templates directly from the document/template header. (Support from the list views will follow later.)

• Updated sidebar layout
Because of the more advanced sidebar structure, the collapsed state now defaults to a floating sidebar.
If preferred, users can switch to an icon-only collapsed sidebar in their personal settings.

Keep in mind: in icon-only mode, Recents and Favorites won’t be visible.