Gain slider; No network; Stuck screen fix attempt

System;

• Blacklist snd-seq-dummy module
• Disable coredumps
• Disable VTs and autologin
• Enable debugging for qt.qpa stuff
• Pedalboard output gain slider
• Remove ethernet related configs
• Update mod-host and mod-ui

Plugins:

• Add dexed plugin
• Add die-fluidsynth plugin
• Fix CAPS AmpVTS silent output
• Update x42 midigen (more test songs)