feat: Handle offline mode in Flagship app

[Ldoppea]

We want cozy-home to be compatible with the new Flagship app's Offline mode

When hosted in a Flagship app's WebView we now want to use FlagshipLink instead of StackLink in cozy-client

This link will allow to redirect all queries to the Flagship app that will handle data access when offline but also when online

Related PR: https://github.com/cozy/cozy-client/pull/1507 Related PR: https://github.com/cozy/cozy-flagship-app/pull/1239 Related PR: https://github.com/cozy/cozy-libs/pull/2562 Related PR: https://github.com/cozy/cozy-libs/pull/2581 Related PR: https://github.com/cozy/cozy-libs/pull/2585

### ✨ Features

* Add support for Offline mode in Flagship app

### 🐛 Bug Fixes

*

### 🔧 Tech

*

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TODO:

• [x] Update cozy-client after cozy/cozy-client#1507 is merged
• [x] Update cozy-intent and cozy-device-helper after cozy/cozy-libs#2562 is merged
• [ ] Update cozy-viewer after cozy/cozy-libs#2581 is merged
• [x] Update cozy-harvest-lib after cozy/cozy-libs#2585 is merged