rust formatter

vim/.vim/lua/plugins/conform.lua

@@ -33,6 +33,7 @@ return {
 		},
 		opts = {
 			formatters_by_ft = {
+				rust = { "rustfmt", lsp_format = "fallback" },
 				-- Conform will run multiple formatters sequentially
 				-- go = { "goimports", "gofmt" },
 				-- Use a sub-list to run only the first available formatter