add ghostty config and theme

configs/ghostty_g/themes/Ocean

@@ -0,0 +1,21 @@
+palette = 0=#000000
+palette = 1=#990000
+palette = 2=#00a600
+palette = 3=#999900
+palette = 4=#0000b2
+palette = 5=#b200b2
+palette = 6=#00a6b2
+palette = 7=#bfbfbf
+palette = 8=#666666
+palette = 9=#e50000
+palette = 10=#00d900
+palette = 11=#e5e500
+palette = 12=#0000ff
+palette = 13=#e500e5
+palette = 14=#00e5e5
+palette = 15=#e5e5e5
+background = 224fbc
+foreground = ffffff
+cursor-color = 7f7f7f
+selection-background = 216dff
+selection-foreground = ffffff