Describe the bug
A clear and concise description of what the bug is.
When using the jellyfin "last watched"/"last view date" rule, if a show hasn't been watched, the date is null and the custom days become 864000:

• operator: AND
  action: before
  firstValueName: Jellyfin - Last view date
  firstValue: null
  secondValueName: custom_days
  secondValue: 864000
  result: false

To Reproduce
Steps to reproduce the behavior:

1. add a show rule for jellyfin. specifically a last view date rule
2. set the second value to custom days before 10 days
3. save
4. Go to go to collections
5. Click on a show collection
6. Click on "test media"
7. write a show nobody on your server has ever watched
8. note that it doesn't have a working lastViewDateExpected behaviorA clear and concise description of what you expected to happen.

Screenshots
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Device (please complete the following information):

• OS: unraid (docker
• Version: 3.1.0

Additional context
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