Retrieve values from the front-end local storage

[FabienLelaquais]

Description

Application portals may store information (such as authentication data) in the local storage of the browser.
This happens within IFPEN for example.

This feature would provide an access to this information, on a property-by-property basis, like a synchronous retrieval of a local storage value for the current app, or, or may be both, an initial retrieval once the app is up.

Acceptance Criteria

• If applicable, a new demo code is provided to show the new feature in action.
• Integration tests exhibiting how the functionality works are added.
• Any new code is covered by a unit tested.
• Check code coverage is at least 90%.
• Related issue(s) in taipy-doc are created for documentation and Release Notes are updated.

Code of Conduct

• I have checked the existing issues.
• I am willing to work on this issue (optional)