GameInfoCache: Prioritize loads, so launching doesn't wait behind search

Type-to-search asks for the title of every game in the list, queueing a
load for each, and launching a game whose info wasn't loaded yet then
blocked until the whole queue had drained. Search's loads are now LOW,
and launching asks at HIGH, which queues its own load rather than wait
for a pending one.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

UI/MainScreen.cpp

@@ -72,9 +72,10 @@ static void LaunchFile(ScreenManager *screenManager, Screen *currentScreen, cons
 		// Check if we already know that this game isn't playable.
 		// If coming from the main screen, the info will already be computed here since the icon is displayed etc.
 		// Otherwise (launching from a file association, a shortcut, drag-and-drop...) we have to block until
-		// it's available - we can't decide what to do below without it.
+		// it's available - we can't decide what to do below without it. HIGH, so we don't wait behind
+		// whatever else is queued, like a search's loads for every game in a big list.
 		const GameInfoFlags neededFlags = GameInfoFlags::FILE_TYPE | GameInfoFlags::PARAM_SFO;
-		std::shared_ptr<GameInfo> info = g_gameInfoCache->GetInfo(nullptr, path, neededFlags);
+		std::shared_ptr<GameInfo> info = g_gameInfoCache->GetInfo(nullptr, path, neededFlags, nullptr, GameInfoFlags::EMPTY, TaskPriority::HIGH);
 		info->WaitUntilReady(neededFlags);
 
 		switch (info->fileType) {