fix: add "presenter's screen" label to it's screensaver

Author: olzzon

packages/webui/src/client/ui/ClockView/ClockViewPieceIcons/ClockViewPieceIcons.scss

@@ -2,7 +2,7 @@
 
 // Variables
 $text-color: #ffffff;
-$font-size-base: 21em;
+$font-size-base: 19.5em;
 $text-shadow: 0 2px 9px rgba(0, 0, 0, 0.5);
 $letter-spacing: 0.03em;