mkRedundantOption: use <br> for newline instead

flake.nix

@@ -55,7 +55,7 @@
 
     mkRedundantOption = name: value: attrs: lib.mkOption {
       inherit (attrs) type default;
-      description = "${attrs.description}  ${mkRedundantOptionDescription name value}";
+      description = "${attrs.description}<br>${mkRedundantOptionDescription name value}";
     };
   };
 }