Minor clean up

Delta	4 lines added, 6 lines removed, 2-line decrease

src/main/com/whitemagicsoftware/kmcaster/EventHandler.java

		assert dst != null;
		assert graphics != null;
		-
		- final var font = label.getFont();
		- final var text = label.getText();
		-
		final var frc = ((Graphics2D) graphics).getFontRenderContext();

		final var dstWidthPx = dst.getWidth();
		final var dstHeightPx = dst.getHeight();
		+
		+ final var text = label.getText();

		var minSizePt = 1f;
		var maxSizePt = 1000f;
		- var scaledFont = font;
		+ var scaledFont = label.getFont();
		float scaledPt = scaledFont.getSize();

		while( maxSizePt - minSizePt > 1f ) {
		scaledFont = scaledFont.deriveFont( scaledPt );

		final var layout = new TextLayout( text, scaledFont, frc );
		final var fontWidthPx = layout.getVisibleAdvance();
		-
		final var metrics = scaledFont.getLineMetrics( text, frc );
		final var fontHeightPx = metrics.getHeight();

		}

		+ // Round down to guarantee fit.
		return scaledFont.deriveFont( (float) Math.floor( scaledPt ) );
		}