add ghostty config and theme

configs/ghostty_g/themes/iTerm2 Tango Light

@@ -0,0 +1,21 @@
+palette = 0=#000000
+palette = 1=#d81e00
+palette = 2=#5ea702
+palette = 3=#cfae00
+palette = 4=#427ab3
+palette = 5=#89658e
+palette = 6=#00a7aa
+palette = 7=#dbded8
+palette = 8=#686a66
+palette = 9=#f54235
+palette = 10=#99e343
+palette = 11=#fdeb61
+palette = 12=#84b0d8
+palette = 13=#bc94b7
+palette = 14=#37e6e8
+palette = 15=#f1f1f0
+background = ffffff
+foreground = 000000
+cursor-color = 000000
+selection-background = c1deff
+selection-foreground = 000000