refactor ciagl dalszy

static/js/stats.js

@@ -0,0 +1,11 @@
+document.addEventListener('input', (e) => {
+    const el = e.target.closest('[data-action="filter-table"]');
+    if (!el) return;
+    const table = document.querySelector(el.getAttribute('data-target') || '');
+    if (!table) return;
+    const q = (el.value || '').toLowerCase();
+    table.querySelectorAll('tbody tr').forEach(tr => {
+        const text = (tr.innerText || tr.textContent || '').toLowerCase();
+        tr.style.display = text.includes(q) ? '' : 'none';
+    });
+});