Fix clock fontSize

Fixed clock fontSize. On some devices with a lower screen resolution the timer get's rendered incorrectly. Lowering the fontSize should fix that behaviour.

Initial release

Simple boxtimer is an easy to use timer for the boxing training. Completely free and open source, no ads, no tracking.

Features:

• Very simple to use
• Display stays awake
• Select timer 3min to 10sec
• Plays a beep sound
• Mute sound
• Select sound volume