mishmesh Firmware v1.2.0

• Pomodoro timer added to the Clock app.
• "Wake screen on message" configuration (global + per-chat override).
• Battery settings panel with battery display style (gauge, percentage, voltage) and ADC calibration.
• Screen brightness control (thanks @Bjorkan).

What's Changed

• Add persistent screen brightness control to MishMesh by @Bjorkan in #10

Full Changelog: mishmesh-v1.1.0...mishmesh-v1.2.0