add ghostty config and theme

configs/ghostty_g/themes/SynthwaveAlpha

@@ -0,0 +1,21 @@
+palette = 0=#241b30
+palette = 1=#e60a70
+palette = 2=#00986c
+palette = 3=#adad3e
+palette = 4=#6e29ad
+palette = 5=#b300ad
+palette = 6=#00b0b1
+palette = 7=#b9b1bc
+palette = 8=#7f7094
+palette = 9=#e60a70
+palette = 10=#0ae4a4
+palette = 11=#f9f972
+palette = 12=#aa54f9
+palette = 13=#ff00f6
+palette = 14=#00fbfd
+palette = 15=#f2f2e3
+background = 241b30
+foreground = f2f2e3
+cursor-color = f2f2e3
+selection-background = 6e29ad
+selection-foreground = f2f2e3