[Activity -QA] Date filter not displaying activities for all selected dates when custom and preset dates are selected simultaneously

[olgapod]

Steps to reproduce

1. Navigate to the Activity Feed.
2. Open the date filter and select a preset date option (e.g., "Past 24 hours").
3. Additionally, set a custom date range that spans a few days.
4. Observe the activities displayed within the selected date options.

Expected behaviour

• The Activity Feed should display all activities that fall within both the preset and custom date ranges, providing a complete view of activities matching the selected filters.

Actual behaviour

• When both custom and preset date ranges are selected, not all activities within those dates are displayed, leading to missing entries and inconsistent filter behavior.