add ghostty config and theme

configs/ghostty_g/themes/AtomOneLight

@@ -0,0 +1,21 @@
+palette = 0=#000000
+palette = 1=#de3e35
+palette = 2=#3f953a
+palette = 3=#d2b67c
+palette = 4=#2f5af3
+palette = 5=#950095
+palette = 6=#3f953a
+palette = 7=#bbbbbb
+palette = 8=#000000
+palette = 9=#de3e35
+palette = 10=#3f953a
+palette = 11=#d2b67c
+palette = 12=#2f5af3
+palette = 13=#a00095
+palette = 14=#3f953a
+palette = 15=#ffffff
+background = f9f9f9
+foreground = 2a2c33
+cursor-color = bbbbbb
+selection-background = ededed
+selection-foreground = 2a2c33