Revert "feat(lua_ls): remove stylua"

This reverts commit 0f697cb3b3.

after/lsp/lua_ls.lua

@@ -1,5 +1,3 @@
-local lsp = require("lsp")
-
 local lua_library_paths = { vim.env.VIMRUNTIME }
 vim.list_extend(lua_library_paths, require("pack").get_paths())
 
@@ -32,5 +30,39 @@ return {
             telemetry = { enable = false },
         },
     },
-    on_attach = lsp.on_attach,
+    on_attach = function(client, bufnr)
+        require("lsp").on_attach(client, bufnr)
+        local util = require("util")
+
+        vim.keymap.set("n", "<leader>lf", function()
+            util.format({
+                buf = bufnr,
+                cmd = {
+                    "stylua",
+                    "--stdin-filepath",
+                    "%file%",
+                    "-",
+                },
+                output = "stdout",
+                auto_indent = true,
+            })
+        end, { buffer = bufnr })
+
+        vim.keymap.set("x", "<leader>lf", function()
+            util.format({
+                buf = bufnr,
+                cmd = {
+                    "stylua",
+                    "--range-start",
+                    "%byte_start%",
+                    "--range-end",
+                    "%byte_end%",
+                    "--stdin-filepath",
+                    "%file%",
+                    "-",
+                },
+                output = "stdout",
+            })
+        end, { buffer = bufnr })
+    end,
 }