Bug Fixes

remove unnecessary absolute path check for standalone mode saves 8f2e35bd0
show final game frame when opening/closing subscreen 89a0cd84d

For older quests utilizing none of the QRs related to "cool scrolling", the subscreen open/close crawl would show a version of the game frame that was missing a few things, like enemy or player sprites.

This should allow us to simplify the rendering (no need to render most things twice to a secondary bitmap), and just looks better.
do not stretch GUI ad7995cf1
set default volume to 100% instead of 25% 297e7b933

Refactors

move get_register_dependencies to zasm_table.cpp 13b6a599c
remove extra draws to scrollbuf in draw_screen 2f47c11fc
remove digi_music volume control 88c037791

digi_music is a global volume control for all allegro 4 music streams, which is only used for GME (so all those chiptune formats). But we already apply emusic_volume (enhanced music) to all non-MIDI music, so digi_music was at best redundant, and at worse a confusing knob that only modified some music formats.

It's been removed from the Sound dialog, and now defaults to 255 (100%). It can still be modified via scripts, though this should be changed to just set/read emusic_volume sometime in the near future.

BTW - ~6 months ago OGG was changed to use Allegro 5 instead of 4, which means at that point digi_music no longer had any effect on OGG volume.
remove music buffer setting 572f44514

This only applied to it/xm/s3m/mod music. There's no need to expose this to users. Instead, always use 128KB as a buffer size.

add qst.author sentry tag, so we can know who to reach out to for crashes in unpublished quests 48fbd2609