add ghostty config and theme

configs/ghostty_g/themes/Seafoam Pastel

@@ -0,0 +1,21 @@
+palette = 0=#757575
+palette = 1=#825d4d
+palette = 2=#728c62
+palette = 3=#ada16d
+palette = 4=#4d7b82
+palette = 5=#8a7267
+palette = 6=#729494
+palette = 7=#e0e0e0
+palette = 8=#8a8a8a
+palette = 9=#cf937a
+palette = 10=#98d9aa
+palette = 11=#fae79d
+palette = 12=#7ac3cf
+palette = 13=#d6b2a1
+palette = 14=#ade0e0
+palette = 15=#e0e0e0
+background = 243435
+foreground = d4e7d4
+cursor-color = 57647a
+selection-background = ffffff
+selection-foreground = 9e8b13