add ghostty config and theme

configs/ghostty_g/themes/Duotone Dark

@@ -0,0 +1,21 @@
+palette = 0=#1f1d27
+palette = 1=#d9393e
+palette = 2=#2dcd73
+palette = 3=#d9b76e
+palette = 4=#ffc284
+palette = 5=#de8d40
+palette = 6=#2488ff
+palette = 7=#b7a1ff
+palette = 8=#353147
+palette = 9=#d9393e
+palette = 10=#2dcd73
+palette = 11=#d9b76e
+palette = 12=#ffc284
+palette = 13=#de8d40
+palette = 14=#2488ff
+palette = 15=#eae5ff
+background = 1f1d27
+foreground = b7a1ff
+cursor-color = ff9839
+selection-background = 353147
+selection-foreground = b7a2ff