fix: remove SteamOS prefix doubling on osVersion display

app/game/[id]/game-page-client.tsx

@@ -711,7 +711,7 @@ export function GamePageClient({
                             }
                         />
                         <FilterSelect
-                            label='SteamOS Version'
+                            label='OS Version'
                             value={filters.os}
                             options={[
                                 "all",
@@ -892,7 +892,7 @@ export function GamePageClient({
                                                     )}
                                                     {preset.osVersion && (
                                                         <span>
-                                                            SteamOS {preset.osVersion}
+                                                            {preset.osVersion}
                                                         </span>
                                                     )}
                                                 </div>

app/game/[id]/preset-detail-modal.tsx

@@ -301,7 +301,7 @@ export function PresetDetailModal({
                                 {/* Metadata */}
                                 <div className="flex flex-col gap-3">
                                     <MetaItem label="Proton" value={preset.protonVersion} />
-                                    <MetaItem label="SteamOS" value={preset.osVersion} />
+                                    <MetaItem label="OS" value={preset.osVersion} />
                                     <MetaItem
                                         label="Upscaler"
                                         value={