add ghostty config and theme

configs/ghostty_g/themes/Symfonic

@@ -0,0 +1,21 @@
+palette = 0=#000000
+palette = 1=#dc322f
+palette = 2=#56db3a
+palette = 3=#ff8400
+palette = 4=#0084d4
+palette = 5=#b729d9
+palette = 6=#ccccff
+palette = 7=#ffffff
+palette = 8=#1b1d21
+palette = 9=#dc322f
+palette = 10=#56db3a
+palette = 11=#ff8400
+palette = 12=#0084d4
+palette = 13=#b729d9
+palette = 14=#ccccff
+palette = 15=#ffffff
+background = 000000
+foreground = ffffff
+cursor-color = dc322f
+selection-background = 073642
+selection-foreground = ffffff