Move alacritty theme to separate file to allow substitution

themes/alacritty/gruvbox.toml

@@ -0,0 +1,24 @@
+[colors]
+[colors.primary]
+background = "0x282828"
+foreground = "0xd4be98"
+
+[colors.normal]
+black = "0x3c3836"
+red = "0xea6962"
+green = "0xa9b665"
+yellow = "0xd8a657"
+blue = "0x7daea3"
+magenta = "0xd3869b"
+cyan = "0x89b482"
+white = "0xd4be98"
+
+[colors.bright]
+black = "0x3c3836"
+red = "0xea6962"
+green = "0xa9b665"
+yellow = "0xd8a657"
+blue = "0x7daea3"
+magenta = "0xd3869b"
+cyan = "0x89b482"
+white = "0xd4be98"