Pressing `back` button in browser should apply previous filter state

[klakhov]

Currently, applying filters (e.g., on the Tasks page) replaces the browser history entry. As a result, pressing the browser Back button navigates to the previous page instead of restoring the previous filter state.

Instead, filter changes should push a new history entry, so that Back returns to the previous filter configuration — similar to how it works for Jobs in #10217.