Scheduler selection in main UI

Fix for "Scheduler selection" #15333

- Fix "X/Y/Z plot" not working with "Schedule type"
- Fix "Schedule type" not being saved to "params.txt"

Allow PNG-RGBA for Extras Tab

Update pytorch lightning utilities

Fully reverts this time

Forgot some things to revert

Roll back

Fix extra networks buttons when filename contains an apostrophe

Sgm uniform scheduler for SDXL-Lightning models

Escape btn_copy_path filename

restore outputs path

output -> outputs