Egyptian authorities have extended the pretrial detention of at least 125 people and arrested two journalists shortly before holding a national dialogue on Tuesday to discuss pretrial detention policies, rights lawyers and groups say. Most of those detained were swept up in a wave of arrests following calls for protests on July 12 over economic conditions under President Abdel Fattah al-Sisi, they said. Although there were no protests, dozens were arrested from their homes and held on accusations including spreading false news, using social media platforms to promote terrorist ideas, and belon…