add ghostty config and theme

configs/ghostty_g/themes/Spiderman

@@ -0,0 +1,21 @@
+palette = 0=#1b1d1e
+palette = 1=#e60813
+palette = 2=#e22928
+palette = 3=#e24756
+palette = 4=#2c3fff
+palette = 5=#2435db
+palette = 6=#3256ff
+palette = 7=#fffef6
+palette = 8=#505354
+palette = 9=#ff0325
+palette = 10=#ff3338
+palette = 11=#fe3a35
+palette = 12=#1d50ff
+palette = 13=#747cff
+palette = 14=#6184ff
+palette = 15=#fffff9
+background = 1b1d1e
+foreground = e3e3e3
+cursor-color = 2c3fff
+selection-background = 070e50
+selection-foreground = f0272d