### Description In a document, I typed "---" and "***" but none of them are making a horizontal rule when exporting as simple PDF. ### Reproducing Try to type --- or *** in a document, and then export to Simple PDF. ### Zettlr version 3.4.1 ### Installation Method From the Website or GitHub ### Installation Method (Other) _No response_ ### Your Platform - [X] Windows - [ ] macOS - [ ] Linux ### Architecture - [X] Intel 64bit - [ ] ARM 64bit (includes Apple Silicon) ### Operating System Version Windows 11 ### Additional Information _No response_