add ghostty config and theme

configs/ghostty_g/themes/FirefoxDev

@@ -0,0 +1,21 @@
+palette = 0=#002831
+palette = 1=#e63853
+palette = 2=#5eb83c
+palette = 3=#a57706
+palette = 4=#359ddf
+palette = 5=#d75cff
+palette = 6=#4b73a2
+palette = 7=#dcdcdc
+palette = 8=#001e27
+palette = 9=#e1003f
+palette = 10=#1d9000
+palette = 11=#cd9409
+palette = 12=#006fc0
+palette = 13=#a200da
+palette = 14=#005794
+palette = 15=#e2e2e2
+background = 0e1011
+foreground = 7c8fa4
+cursor-color = 708284
+selection-background = 163c61
+selection-foreground = f2f5f9