iOS automatically determines how often to refresh widgets based on user's behavior, so we should rely on that instead of artificially delaying timeline reloads until the next day if an error occurs.
This reverts commit ec8ef743a3.
Previously, we used Date() to calculate the number of days until apps expired. This meant all calculations were based on when the widget extension was run — not when it was actually displayed. As a result, this made it seem like the widget never updated since all timeline entries were calculated from the same date.
Now, we instead calculate remaining days from AppEntry.date. This means the widget’s remaining days are relative to the current timeline entry’s date, matching what is displayed in AltStore.
