Fix: Fixed group by date

[hishitetsu]

Resolved / Related Issues

• Were these changes approved in an issue or discussion with the project maintainers? In order to prevent extra work, feature requests and changes to the codebase must be approved before the pull request will be reviewed. This prevents extra work for the contributors and maintainers.
  Closes Bug: Formula of Earlier This Week & Last Week #11841
  Closes Groups in the Downloads folder are not being sorted #11333

Validation
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• Did you build the app and test your changes?
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• Did you remove any strings from the en-us resource file?
  • Did you search the solution to see if the string is still being used?
• Did you implement any design changes to an existing feature?
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Details

• This week and last week are now determined based on the current locale settings
• Added "Future" category for future timestamps
• Split "Older" category by year

[ferrariofilippo]

Resources aside, LGTM

[yaira2]

LGTM