add ghostty config and theme

configs/ghostty_g/themes/Red Sands

@@ -0,0 +1,21 @@
+palette = 0=#000000
+palette = 1=#ff3f00
+palette = 2=#00bb00
+palette = 3=#e7b000
+palette = 4=#0072ff
+palette = 5=#bb00bb
+palette = 6=#00bbbb
+palette = 7=#bbbbbb
+palette = 8=#555555
+palette = 9=#bb0000
+palette = 10=#00bb00
+palette = 11=#e7b000
+palette = 12=#0072ae
+palette = 13=#ff55ff
+palette = 14=#55ffff
+palette = 15=#ffffff
+background = 7a251e
+foreground = d7c9a7
+cursor-color = ffffff
+selection-background = a4a390
+selection-foreground = 000000