feat: generate Alacritty files in toml instead of yaml (#158)

Newer versions of Alacritty use the toml format instead of yaml.

extras/alacritty/seoulbones_dark.toml

@@ -0,0 +1,25 @@
+# This file is auto-generated by shipwright.nvim
+[colors.bright]
+black = "#6C6465"
+red = "#EB99B1"
+green = "#8FCD92"
+yellow = "#FFE5B3"
+blue = "#A2C8E9"
+magenta = "#B2B3DA"
+cyan = "#6BCACB"
+white = "#A8A8A8"
+[colors.cursor]
+cursor = "#E2E2E2"
+text = "#4B4B4B"
+[colors.normal]
+black = "#4B4B4B"
+blue = "#97BDDE"
+cyan = "#6FBDBE"
+green = "#98BD99"
+magenta = "#A5A6C5"
+red = "#E388A3"
+white = "#DDDDDD"
+yellow = "#FFDF9B"
+[colors.primary]
+background = "#4B4B4B"
+foreground = "#DDDDDD"