add ghostty config and theme

configs/ghostty_g/themes/xcodelighthc

@@ -0,0 +1,21 @@
+palette = 0=#b4d8fd
+palette = 1=#ad1805
+palette = 2=#355d61
+palette = 3=#78492a
+palette = 4=#0058a1
+palette = 5=#9c2191
+palette = 6=#703daa
+palette = 7=#000000
+palette = 8=#8a99a6
+palette = 9=#ad1805
+palette = 10=#174145
+palette = 11=#78492a
+palette = 12=#003f73
+palette = 13=#9c2191
+palette = 14=#441ea1
+palette = 15=#000000
+background = ffffff
+foreground = 000000
+cursor-color = 000000
+selection-background = b4d8fd
+selection-foreground = 000000