fix: restore 240px park column width — clamp() unreliable in col elements

The actual overflow fix was removing whiteSpace:nowrap from the td.
With that gone, 240px is sufficient and content wraps naturally when tight.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

components/WeekCalendar.tsx

@@ -294,7 +294,7 @@ export function WeekCalendar({ parks, weekDates, data, grouped, rideCounts, coas
         tableLayout: "fixed",
       }}>
         <colgroup>
-          <col style={{ width: "clamp(220px, 22%, 280px)" }} />
+          <col style={{ width: 240 }} />
           {weekDates.map((d) => (
             <col key={d} style={{ width: 130 }} />
           ))}