add ghostty config and theme

configs/ghostty_g/themes/kurokula

@@ -0,0 +1,21 @@
+palette = 0=#333333
+palette = 1=#b66056
+palette = 2=#85b1a9
+palette = 3=#dbbb43
+palette = 4=#6890d7
+palette = 5=#887aa3
+palette = 6=#837369
+palette = 7=#ddd0c4
+palette = 8=#515151
+palette = 9=#ffc663
+palette = 10=#c1ffae
+palette = 11=#fff700
+palette = 12=#a1d9ff
+palette = 13=#a994ff
+palette = 14=#f9cfb9
+palette = 15=#ffffff
+background = 141515
+foreground = ddd0c4
+cursor-color = 702420
+selection-background = 515151
+selection-foreground = ffc663