fix(filters): label the Days to Finish slider on the PlayEvent filter bar

RangeSlider does not render its own label — the field label is emitted by
the _filter_field wrapper. The PlayEvent filter bar added the Days to Finish
slider bare, so it showed no label. Wrap it in _filter_field like every
other slider (GameFilterBar/PurchaseFilterBar).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

common/components/filters.py

@@ -1495,16 +1495,19 @@ def _playevent_fields(existing: dict) -> list:
                 ),
             ],
         ),
-        RangeSlider(
-            label="Days to Finish",
-            input_name_prefix="filter-days-to-finish",
-            min_value=days_min,
-            max_value=days_max,
-            range_min=0,
-            range_max=365,
-            step="1",
-            min_placeholder="e.g. 1",
-            max_placeholder="e.g. 30",
+        _filter_field(
+            "Days to Finish",
+            RangeSlider(
+                label="Days to Finish",
+                input_name_prefix="filter-days-to-finish",
+                min_value=days_min,
+                max_value=days_max,
+                range_min=0,
+                range_max=365,
+                step="1",
+                min_placeholder="e.g. 1",
+                max_placeholder="e.g. 30",
+            ),
         ),
     ]
     return fields