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

homeConfigs/modules/firefox.nix

@@ -0,0 +1,19 @@
+{ config, lib, inputs, ... }:
+
+{
+  options.mods.firefox.enable = lib.mkOption {
+    type = lib.types.bool;
+	default = true;
+	description = "install and configure firefox";
+  };
+
+  config = lib.mkIf config.mods.firefox.enable {
+    programs.firefox = {
+      enable = lib.mkDefault true;
+      profiles.default = {
+        extensions = with inputs.firefox-addons.packages."x86_64-linux"; 
+	    [vimium ublock-origin];
+	  };
+    };
+  };
+}