add ghostty config and theme

configs/ghostty_g/themes/Abernathy

@@ -0,0 +1,21 @@
+palette = 0=#000000
+palette = 1=#cd0000
+palette = 2=#00cd00
+palette = 3=#cdcd00
+palette = 4=#1093f5
+palette = 5=#cd00cd
+palette = 6=#00cdcd
+palette = 7=#faebd7
+palette = 8=#404040
+palette = 9=#ff0000
+palette = 10=#00ff00
+palette = 11=#ffff00
+palette = 12=#11b5f6
+palette = 13=#ff00ff
+palette = 14=#00ffff
+palette = 15=#ffffff
+background = 111416
+foreground = eeeeec
+cursor-color = bbbbbb
+selection-background = eeeeec
+selection-foreground = 333333