add ghostty config and theme

configs/ghostty_g/themes/zenburned

@@ -0,0 +1,21 @@
+palette = 0=#404040
+palette = 1=#e3716e
+palette = 2=#819b69
+palette = 3=#b77e64
+palette = 4=#6099c0
+palette = 5=#b279a7
+palette = 6=#66a5ad
+palette = 7=#f0e4cf
+palette = 8=#625a5b
+palette = 9=#ec8685
+palette = 10=#8bae68
+palette = 11=#d68c67
+palette = 12=#61abda
+palette = 13=#cf86c1
+palette = 14=#65b8c1
+palette = 15=#c0ab86
+background = 404040
+foreground = f0e4cf
+cursor-color = f3eadb
+selection-background = 746956
+selection-foreground = f0e4cf