Breeze color scheme uses better contrasting color for "black" color value

The previous set of blueish colors offered fairly bad contrast with the
charcoal grey background when using the "black" contrast value. To give
a more uniform experience the default "black" color is now charcoal grey
with it's intense variant shifted into a light grey to complement the
intense background, which is charcoal grey shifted into a more intense dark

This should offer overall better contrast, in particular in htop.

BUG: 371068
REVIEW: 129368
CHANGELOG: Breeze color scheme uses better contrasting color for "black" color value

data/color-schemes/Breeze.colorscheme

@@ -11,13 +11,13 @@ Color=35,38,41
 Color=49,54,59
 
 [Color0]
-Color=7,54,66
+Color=49,54,59
 
 [Color0Intense]
-Color=0,43,54
+Color=127,140,141
 
 [Color0Faint]
-Color=32,43,54
+Color=49,54,59
 
 [Color1]
 Color=237,21,21