feat(formatting): format xhtml with html-tidy

lua/dot013/plugins/formatting.lua

@@ -34,8 +34,8 @@ return {
 					nix = { "alejandra" },
 					rust = { "rustfmt", lsp_format = "fallback" },
 					sh = { "shellharden", "shfmt" },
-					xml = { "xmllint" },
+					xml = { "xmllint", "xmltidy" },
-					xhtml = { "xmllint" },
+					xhtml = { "xmllint", "xmltidy" },
 					markdown = { "mdfmt" },
 
 					html = { "prettierd", "prettier", stop_after_first = true },
@@ -87,6 +87,12 @@ return {
 					mdfmt = {
 						command = "mdfmt",
 					},
+					-- Uses HTML Tidy
+					xmltidy = {
+						inherit = false,
+						command = "tidy",
+						args = { "-xml", "-indent", "yes", "2", "-wrap", "100", "-" },
+					},
 				},
 			})
 		end,

package.nix

@@ -104,6 +104,7 @@
   formatters = with pkgs; [
     alejandra
     jq
+    html-tidy
     libxml2
     mdfmt
     prettierd