WASM size optimizations

Cargo.toml

@@ -59,6 +59,12 @@ ssr = [
   "leptos_router/ssr",
 ]
 
+[profile.wasm-release]
+inherits = "release"
+opt-level = 'z'
+lto = true
+codegen-units = 1
+
 [package.metadata.leptos]
 # The name used by wasm-bindgen/cargo-leptos for the JS/WASM bundle. Defaults to the crate name   
 output-name = "rezervator"
@@ -108,3 +114,4 @@ lib-features = ["hydrate"]
 #
 # Optional. Defaults to false.
 lib-default-features = false
+lib-profile-release = "wasm-release"