feat(format): use conform as lsp formatter since it has better format diffs

lua/lazyvim/util/lsp.lua

@@ -104,9 +104,17 @@ end
 
 ---@param opts? {filter?: lsp.Client.filter, bufnr?: number}
 function M.format(opts)
-  vim.lsp.buf.format(
-    vim.tbl_deep_extend("force", opts or {}, require("lazyvim.util").opts("nvim-lspconfig").format or {})
-  )
+  opts = vim.tbl_deep_extend("force", {}, opts or {}, require("lazyvim.util").opts("nvim-lspconfig").format or {})
+  local ok, conform = pcall(require, "conform")
+  -- use conform for formatting with LSP when available,
+  -- since it has better format diffing
+  if ok then
+    opts.formatters = {}
+    opts.lsp_fallback = true
+    conform.format(opts)
+  else
+    vim.lsp.buf.format(opts)
+  end
 end
 
 return M