add ghostty config and theme

configs/ghostty_g/themes/Ryuuko

@@ -0,0 +1,21 @@
+palette = 0=#2c3941
+palette = 1=#865f5b
+palette = 2=#66907d
+palette = 3=#b1a990
+palette = 4=#6a8e95
+palette = 5=#b18a73
+palette = 6=#88b2ac
+palette = 7=#ececec
+palette = 8=#5d7079
+palette = 9=#865f5b
+palette = 10=#66907d
+palette = 11=#b1a990
+palette = 12=#6a8e95
+palette = 13=#b18a73
+palette = 14=#88b2ac
+palette = 15=#ececec
+background = 2c3941
+foreground = ececec
+cursor-color = ececec
+selection-background = 002831
+selection-foreground = 819090