Blank screen displayed after browsing data cleared

[MoralCode]

Describe the bug ClassClock displays a blank white screen after browsing data (specifically local storage) is cleared

To Reproduce Steps to reproduce the behavior:

1. Go to classclock and select a school if you havent already
2. open inspect element to the "storage" tab
3. under "local" storage, delete all the data
4. Refresh classclock page. Observe error

Expected behavior an error screen, or more ideally, ClassClock defaults to the select a school screen

Desktop (please complete the following information):

• OS: Kununtu
• Browser Librewolf

Additional context SENTRY id: CLASSCLOCK-4

[MoralCode]

Possibly also related to iOS behavior in relation to low memory or tracking prevention: https://stackoverflow.com/a/68088083/