Reimplement home manager files

.config/nix/home/alacritty.nix

@@ -0,0 +1,17 @@
+{ ... }:
+{
+  programs.alacritty = {
+    enable = true;
+    settings.font = {
+      size = 14;
+      normal.family = "Iosevka Comfy";
+      normal.style = "Regular";
+    };
+    settings.window = {
+      padding.x = 18;
+      padding.y = 18;
+      opacity = 0.85;
+      decorations = "Buttonless";
+    };
+  };
+}