v0.9.3

• Added audio low-pass filter.
• Moved cart loading to SRAM.
• Removed built-in BIOS.
• Moved the existing 2021 No-Intro-compatible .json's to the "0 - 2021 Romset" folder.
• Added 2024 No-Intro-compatible .json's to the "0 - 2024 Romset" folder.
• Increased vector dynamic range to 6 bits from 5 bits for slightly improved image quality.
• Companding for improved dynamic-range.
• Optional "Phosphor decay" mode that gives a less "smeary" persistence effect.
• Persistence control now has 32 levels, with better granularity.
• Roms can be loaded directly without requiring an overlay now.