continue refactor, home modules are actual modules and remove some useless files

homeConfigs/modules/alacritty.nix

@@ -0,0 +1,20 @@
+{ lib, config, ... }:
+
+{
+  options.mods.alacritty.enable = lib.mkOption {
+    type = lib.types.bool;
+	default = true;
+	description = "install and config alacritty";
+  };
+
+  config = lib.mkIf config.mods.alacritty.enable {
+    programs.alacritty = {
+      enable = true;
+      settings = {
+        window.opacity = 0.9;
+        env.XTERM = "xterm-256color";
+        font.size = 10;
+      };
+    };
+  };
+}