⚠️ This PR depends on #9896 and MUST NOT be merged before that one.
- Close#9898
- Move right menu to Drive View
- Use new icon for toggling the menu
- Move Search Bar into Drive View
- both of these changes come with free simplifications to the code.
- Refactor entire Top Bar to show pages as tabs
- Fix https://github.com/enso-org/cloud-v2/issues/1301
- Remove grey background from arrow icon visible when hovering over directory rows
# Important Notes
- Fonts containing slight variants have been added to make it match more closely with the Figma design. HOWEVER:
- They have been added in `app/gui2` instead of the Dashboard codebase, because that is where the existing Enso font is located.
- While it's definitely possible to put them in the Dashboard codebase, I think it's preferable to avoid that, otherwise we will have two separate mechanisms for loading/packaging fonts.
- However, this problem SHOULD go away if (if not when) the entrypoints for the desktop app (in `app/gui2`) and cloud.enso.org (in `app/ide-desktop/lib/dashboard`) are merged.
