add ghostty config and theme

configs/ghostty_g/themes/Mellifluous

@@ -0,0 +1,21 @@
+palette = 0=#1a1a1a
+palette = 1=#d29393
+palette = 2=#b3b393
+palette = 3=#cbaa89
+palette = 4=#a8a1be
+palette = 5=#b39fb0
+palette = 6=#c0af8c
+palette = 7=#dadada
+palette = 8=#5b5b5b
+palette = 9=#c95954
+palette = 10=#828040
+palette = 11=#a6794c
+palette = 12=#5a6599
+palette = 13=#9c6995
+palette = 14=#74a39e
+palette = 15=#ffffff
+background = 1a1a1a
+foreground = dadada
+cursor-color = bfad9e
+selection-background = 2d2d2d
+selection-foreground = c0af8c