add ghostty config and theme

configs/ghostty_g/themes/embers-dark

@@ -0,0 +1,21 @@
+palette = 0=#16130f
+palette = 1=#826d57
+palette = 2=#57826d
+palette = 3=#6d8257
+palette = 4=#6d5782
+palette = 5=#82576d
+palette = 6=#576d82
+palette = 7=#a39a90
+palette = 8=#5a5047
+palette = 9=#828257
+palette = 10=#2c2620
+palette = 11=#433b32
+palette = 12=#8a8075
+palette = 13=#beb6ae
+palette = 14=#825757
+palette = 15=#dbd6d1
+background = 16130f
+foreground = a39a90
+cursor-color = a39a90
+selection-background = 433b32
+selection-foreground = a39a90