feat: wire MKT tab to top-level filters and remove internal category filter

MktDataView now receives filteredData/filteredAdsData so the global
FilterBar controls the tab's data. Removed the local "All Categories"
dropdown that previously sat next to the Include COGS toggle.

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

App.tsx

@@ -926,7 +926,7 @@ const App: React.FC = () => {
 
               <Suspense fallback={<LoadingSpinner />}>
                 <div className={view === 'mkt' ? '' : 'hidden'}>
-                  <MktDataView rawData={rawData} adsData={adsData} />
+                  <MktDataView rawData={filteredData} adsData={filteredAdsData} />
                 </div>
               </Suspense>