Resolve "The notification count and the notification panel show wrong data when user logs in."

What is in this MR

• E.g. a short explanation of what this MR does.

How to test this MR

• E.g. a short series of steps on how to test the features/bug fixes in this MR.

Merge Request Checklist

• changelog.md has been updated if required.
• New/updated Premium/Enterprise features are separated correctly in the premium or enterprise folder
• The latest Chrome and Firefox have been used to test any new frontend features
• Documentation has been updated
• Quality Standards are met
• Performance: tables are still fast with 100k+ rows, 100+ field tables
• The redoc API pages have been updated for any REST API changes
• Our custom API docs are updated for changes to endpoints accessed via api tokens
• The UI/UX has been updated following UI Style Guide

Closes #2016 (closed)