by Adrian Tam
Based on 🔕📆 Mute on event in calendar by Jaroslav Sumbal.
Searches title and description of calendar events for the specified keywords and mute the phone at the beginning of the event and unmute it at the end. Keywords for unmute can be set independently to allow "asymmetric mute / unmute" behavior.
Version 3: Fix unmute bug.
Version 4: Simplify flow to exactly 30 blocks. No longer requires premium to run.