feat: implement initial language resolution for SSR and local storage support

- Added a function to determine the initial language based on server-side rendering and local storage.
- Updated i18n initialization to use the resolved initial language instead of the default.

src/features/hall/hall-betting-grid.tsx

@@ -1159,7 +1159,7 @@ export function HallBettingGrid({ drawLive }: { drawLive: HallDrawLiveSnapshot }
                         <th key={column.key} className="min-w-16 px-1 py-2 text-center font-bold">
                           <span className="block truncate">
                             {pickDisplayName(column.play)}
-                            {column.digitSlot !== undefined
+                            {column.digitSlot !== undefined && activeCategory !== "JACKPOT"
                               ? `-${digitSlotLabel(activeCategory, column.digitSlot)}`
                               : ""}
                           </span>