add ghostty config and theme

configs/ghostty_g/themes/Sugarplum

@@ -0,0 +1,21 @@
+palette = 0=#111147
+palette = 1=#5ca8dc
+palette = 2=#53b397
+palette = 3=#249a84
+palette = 4=#db7ddd
+palette = 5=#d0beee
+palette = 6=#f9f3f9
+palette = 7=#a175d4
+palette = 8=#111147
+palette = 9=#5cb5dc
+palette = 10=#52deb5
+palette = 11=#01f5c7
+palette = 12=#fa5dfd
+palette = 13=#c6a5fd
+palette = 14=#ffffff
+palette = 15=#b577fd
+background = 111147
+foreground = db7ddd
+cursor-color = 53b397
+selection-background = 5ca8dc
+selection-foreground = d0beee