refs #19121 [fid_bbi] change colors

Use a slightly darker red.

themes/fid_bbi/scss/util/settings.scss

 // Opaque colors
-$color-a: #00a376; // Green (PANTONE 2242 C)
-$color-b: #e0004d; // Red (PANTONE 1925 C)
+$color-a: #00a376; // Green
+$color-b: #d80050; // Red
 $color-c: mix($color-a, adjust-hue($color-a, 45), 20); // Blue
 $color-d: #616971; // Gray