set `processInForeground` to `false` by default

src/core/bg/config.js

@@ -217,7 +217,7 @@ async function upgrade(ignoreOldProfiles) {
 		await configStorage.set({ maxParallelWorkers: navigator.hardwareConcurrency || 4 });
 	}
 	if (!config.processInForeground) {
-		await configStorage.set({ processInForeground: true });
+		await configStorage.set({ processInForeground: false });
 	}
 }