Add live reload for external content dirs

desktop only

Signed-off-by: crueter <crueter@eden-emu.dev>

src/yuzu/game_list_worker.cpp

@@ -510,6 +510,10 @@ void GameListWorker::run() {
         }
     }
 
+    for (const std::string &dir : Settings::values.external_content_dirs) {
+        watch_list << QString::fromStdString(dir);
+    }
+
     RecordEvent([this](GameList* game_list) { game_list->DonePopulating(watch_list); });
     processing_completed.Set();
 }