vimPlugins.lualine-nvim: add nvim-web-devicons dependency

Listed as a requirement on their documentation
https://github.com/nvim-lualine/lualine.nvim

pkgs/applications/editors/vim/plugins/overrides.nix

@@ -1004,6 +1004,10 @@
     dependencies = with self; [ plenary-nvim ];
   };
 
+  lualine-nvim = super.lualine-nvim.overrideAttrs {
+    dependencies = with self; [ nvim-web-devicons ];
+  };
+
   luasnip = super.luasnip.overrideAttrs {
     dependencies = with self; [ luaPackages.jsregexp ];
   };