Rewrite README + use lettre crate to validate email address instead of regex

frontend/Cargo.toml

@@ -51,5 +51,7 @@ gloo = "0.11"
 # code size when deploying.
 console_error_panic_hook = { version = "0.1", optional = true }
 
-[package.metadata.wasm-pack.profile.release]
-wasm-opt = false
+# wasm-opt is used by default: https://docs.rs/wasm-opt/latest/wasm_opt/
+# Uncomment the following lines to disable it.
+# [package.metadata.wasm-pack.profile.release]
+# wasm-opt = false

frontend/src/recipe_edit.rs

@@ -1,7 +1,6 @@
 use std::{cell::RefCell, rc, sync::Mutex};
 
 use gloo::{
-    console::log,
     events::{EventListener, EventListenerOptions},
     net::http::Request,
     utils::{document, window},