Previous attempt used dateFrom (a derived $: variable) as the trigger which
Svelte 5 doesn't reliably track as a dependency of a side-effect $: block.
Replace with the primary let-variables (customFrom, customTo, datePre) that
Svelte does track statically.
Also extend eager-loading to cover the global combined feed (feedNextPage)
so date/search filtering works on multi-user instances too, not just per-user
profile pages (pendingShards).
Davide Scaini
1f3f5b3d3b