[1.7.5] QOL Improvements

• Suppress offline-progress panel when returning from Prestige / NG+ pages

• Increase refresh rate for mastery/prestige unlock countdown

• Double the potion drop rate (10 min → 5 min)

• Tiny increase to crop base values (+10%)

• Lower default master audio to 50%

• Double the power of early upgrades cost < 2000

• Audio settings now persist across page reloads / navigation

-Jabran