Fixup latex config

modules/hm/development/latex.nix

@@ -8,6 +8,7 @@
     [
       pkgs.bibtool
       pkgs.texlive.combined.scheme-full
+      pkgs.zathura
     ]
     ++ lib.optionals config.programs.helix.enable [ pkgs.texlab ]
     ++ lib.optionals config.programs.kakoune.enable (
@@ -23,7 +24,7 @@
     );
 
   home.file.".latexmkrc".text = ''
-    $pdf_previewer = '${pkgs.zathura}/bin/zathura %O %S';
+    $pdf_previewer = 'zathura %O %S';
     $pdf_update_method = 2
   '';
 }