add ghostty config and theme

configs/ghostty_g/themes/Kanagawa Wave

@@ -0,0 +1,21 @@
+palette = 0=#090618
+palette = 1=#c34043
+palette = 2=#76946a
+palette = 3=#c0a36e
+palette = 4=#7e9cd8
+palette = 5=#957fb8
+palette = 6=#6a9589
+palette = 7=#c8c093
+palette = 8=#727169
+palette = 9=#e82424
+palette = 10=#98bb6c
+palette = 11=#e6c384
+palette = 12=#7fb4ca
+palette = 13=#938aa9
+palette = 14=#7aa89f
+palette = 15=#dcd7ba
+background = 1f1f28
+foreground = dcd7ba
+cursor-color = c8c093
+selection-background = 2d4f67
+selection-foreground = c8c093