add ghostty config and theme

configs/ghostty_g/themes/Peppermint

@@ -0,0 +1,21 @@
+palette = 0=#353535
+palette = 1=#e74669
+palette = 2=#89d287
+palette = 3=#dab853
+palette = 4=#449fd0
+palette = 5=#da62dc
+palette = 6=#65aaaf
+palette = 7=#b4b4b4
+palette = 8=#535353
+palette = 9=#e4859b
+palette = 10=#a3cca2
+palette = 11=#e1e487
+palette = 12=#6fbce2
+palette = 13=#e586e7
+palette = 14=#96dcdb
+palette = 15=#dfdfdf
+background = 000000
+foreground = c8c8c8
+cursor-color = bbbbbb
+selection-background = e6e6e6
+selection-foreground = 000000