add ghostty config and theme

configs/ghostty_g/themes/Piatto Light

@@ -0,0 +1,21 @@
+palette = 0=#414141
+palette = 1=#b23771
+palette = 2=#66781e
+palette = 3=#cd6f34
+palette = 4=#3c5ea8
+palette = 5=#a454b2
+palette = 6=#66781e
+palette = 7=#ffffff
+palette = 8=#3f3f3f
+palette = 9=#db3365
+palette = 10=#829429
+palette = 11=#cd6f34
+palette = 12=#3c5ea8
+palette = 13=#a454b2
+palette = 14=#829429
+palette = 15=#f2f2f2
+background = ffffff
+foreground = 414141
+cursor-color = 5e77c8
+selection-background = 706b4e
+selection-foreground = acbcdc