#### Tl;dr
Closes: enso-org/cloud-v2#1283
This PR significantly reimplements Offline mode
<details><summary>Demo Presentation</summary>
<p>
https://github.com/enso-org/enso/assets/61194245/752d0423-9c0a-43ba-91e3-4a6688f77034
</p>
</details>
---
#### Context:
Offline mode is one of the core features of the dashboard. Unfortunately, after adding new features and a few refactoring, we lost the ability to work offline.
This PR should bring this functionality back, with a few key differences:
1. We require users to sign in before using the dashboard even in local mode.
2. Once a user is logged in, we allow him to work with local files
3. If a user closes the dashboard, and then open it, he can continue using it in offline mode
#### This Change:
What does this change do in the larger context? Specific details to highlight for review:
1. Reimplements `<AuthProvider />` functionality, now it implemented on top of `<Suspense />` and ReactQuery
2. Reimplements Backend module flow, now remote backend is always created, You no longer need to check if the RemoteBackend is present
3. Introduces new `<Suspense />` component, which is aware of offline status
4. Introduce new offline-related hooks
5. Add a banner to the form if it's unable to submit it offline
6. Refactor `InviteUserDialog` to the new `<Form />` component
7. Fixes redirect bug when the app doesn't redirect a user to the dashboard after logging in
8. Fixes strange behavior when `/users/me` could stuck into infinite refetch
9. Redesign the Cloud table for offline mode.
10. Adds blocking UI dialog when a user clicks "log out" button
#### Test Plan:
This PR requires thorough QA on the login flow across the browser and IDE. All redirect logic must stay unchanged.
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⚠️ 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.
- Close#9886
- Update style of buttons in Drive Bar
- Move "Home" page into a "Start" dialog
- Remove icons that are no longer needed
- Remove Backend Switcher in top bar - they have now been converted to categories
- Incidental changes
- Refactor Backend provider so that both Remote and Local backends are available.
- This was done because both Cloud and Local backends are now easily accessible by switching tabs - the Local backend no longer has its own views with the hidden category switcher
# Important Notes
None
- The invisible drop target below the assets table was absent, breaking both drag-n-drop of external files, and drag-n-drop of existing assets to the root directory.
# Important Notes
None
