add ghostty config and theme

configs/ghostty_g/themes/ChallengerDeep

@@ -0,0 +1,21 @@
+palette = 0=#141228
+palette = 1=#ff5458
+palette = 2=#62d196
+palette = 3=#ffb378
+palette = 4=#65b2ff
+palette = 5=#906cff
+palette = 6=#63f2f1
+palette = 7=#a6b3cc
+palette = 8=#565575
+palette = 9=#ff8080
+palette = 10=#95ffa4
+palette = 11=#ffe9aa
+palette = 12=#91ddff
+palette = 13=#c991e1
+palette = 14=#aaffe4
+palette = 15=#cbe3e7
+background = 1e1c31
+foreground = cbe1e7
+cursor-color = fbfcfc
+selection-background = cbe1e7
+selection-foreground = 1e1c31