Resolve "Log-out notification"

What does this mr do?

A notification is displayed when the user's session has ended, asking the user to sign in again.

Screenshots

Does this MR meet the acceptance criteria?

• I have added a changelog entry to reflect the significant changes I made.
• Tests were created to test the feature.
• I have updated the documentation accordingly.
• I adhere to the style guide. Closes #518 (closed)