v0.3.0

v0.3.0 into the 🔥

• new feature: PARAMS > record each allows simultaneous multitrack recording
• new feature: PARAMS > <instrument> > sound lets you choose between using the fm engine or a one-shot sample (Odashodasho engine only)
• new feature: two more instruments (now 8 total)
• ux: grid improvements (play/solo buttons, instrument selection)
• bug fix: don't error if loading non-file
• bug fix: fix sync between simultaneous instruments