add ghostty config and theme

configs/ghostty_g/themes/NvimDark

@@ -0,0 +1,21 @@
+palette = 0=#07080d
+palette = 1=#ffc0b9
+palette = 2=#b3f6c0
+palette = 3=#fce094
+palette = 4=#a6dbff
+palette = 5=#ffcaff
+palette = 6=#8cf8f7
+palette = 7=#eef1f8
+palette = 8=#4f5258
+palette = 9=#ffc0b9
+palette = 10=#b3f6c0
+palette = 11=#fce094
+palette = 12=#a6dbff
+palette = 13=#ffcaff
+palette = 14=#8cf8f7
+palette = 15=#eef1f8
+background = 14161b
+foreground = e0e2ea
+cursor-color = 9b9ea4
+selection-background = 4f5258
+selection-foreground = e0e2ea