P: Support updating and deleting file renaming presets

Lightroom 11.2 on MacOS Catalina 10.15.7.

In the Library module, next to the File Name field is a hamburger menu for automated renaming. It lets you save your own presets. However, it doesn't have ways to update or delete a preset. It is inconvenient and nonobvious to have to find the .lrtemplate file in ~/Library through the operating system so you can delete it or delete and re-save it.