add ghostty config and theme

configs/ghostty_g/themes/Tango Half Adapted

@@ -0,0 +1,21 @@
+palette = 0=#000000
+palette = 1=#ff0000
+palette = 2=#4cc300
+palette = 3=#e2c000
+palette = 4=#008ef6
+palette = 5=#a96cb3
+palette = 6=#00bdc3
+palette = 7=#e0e5db
+palette = 8=#797d76
+palette = 9=#ff0013
+palette = 10=#8af600
+palette = 11=#ffec00
+palette = 12=#76bfff
+palette = 13=#d898d1
+palette = 14=#00f6fa
+palette = 15=#f4f4f2
+background = ffffff
+foreground = 000000
+cursor-color = 000000
+selection-background = c1deff
+selection-foreground = 000000