Fixed the microphone in voice commands, and issues with searching public settings and saving settings

Changes

• In voice commands, if you cancelled before allowing microphone access, the browser's microphone-in-use indicator could stay on. The microphone now closes right away even if you allow access after cancelling.
• If you search public settings many times in a short period, you are now asked to wait a moment and try again.
• Fixed being able to save more settings than the limit by sending several saves at the same time.