Add session storage to DevTools

[cartogram]

Description

Adds a session display to the DevTools for debugging the project's chosen session type.

Additional context

---

Before submitting the PR, please make sure you do the following:

• [ ] Read the Contributing Guidelines
• [ ] Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123)
• [ ] Update docs in this repository according to your change
• [ ] Run yarn changeset add if this PR cause a version bump based on Keep a Changelog and adheres to Semantic Versioning