add ghostty config and theme

configs/ghostty_g/themes/Elementary

@@ -0,0 +1,21 @@
+palette = 0=#242424
+palette = 1=#d71c15
+palette = 2=#5aa513
+palette = 3=#fdb40c
+palette = 4=#063b8c
+palette = 5=#e40038
+palette = 6=#2595e1
+palette = 7=#efefef
+palette = 8=#4b4b4b
+palette = 9=#fc1c18
+palette = 10=#6bc219
+palette = 11=#fec80e
+palette = 12=#0955ff
+palette = 13=#fb0050
+palette = 14=#3ea8fc
+palette = 15=#8c00ec
+background = 181818
+foreground = efefef
+cursor-color = bbbbbb
+selection-background = b5d5ff
+selection-foreground = 000000