add ghostty config and theme

configs/ghostty_g/themes/Earthsong

@@ -0,0 +1,21 @@
+palette = 0=#121418
+palette = 1=#c94234
+palette = 2=#85c54c
+palette = 3=#f5ae2e
+palette = 4=#1398b9
+palette = 5=#d0633d
+palette = 6=#509552
+palette = 7=#e5c6aa
+palette = 8=#675f54
+palette = 9=#ff645a
+palette = 10=#98e036
+palette = 11=#e0d561
+palette = 12=#5fdaff
+palette = 13=#ff9269
+palette = 14=#84f088
+palette = 15=#f6f7ec
+background = 292520
+foreground = e5c7a9
+cursor-color = f6f7ec
+selection-background = 121418
+selection-foreground = e5c7a9