Scoped css (#5087)

* Create new css module parser

* Use css module processing

* Make hot reloading work for css_module macro

* Change css_module macro shape and rename to styles

* Add css_module example

* Update styles macro documentation

* Remove hidden from styles macro

* Remove unneeded param

* Remove unneeded visibility

* Improve `styles!` macro documentation

* Clippy

* Remove unneeded method

* Clippy

* Clippy

* Replace panic with anyhow

* Update css_module macro to attribute macro

* Update macro docs

* chore: Cargo.lock

* Clippy

* respect semver by deprecating old func

* update to latest winnow

---------

Co-authored-by: Jonathan Kelley <jkelleyrtp@gmail.com>

examples/assets/css_module1.css

@@ -0,0 +1,11 @@
+.container {
+    background-color: lightblue;
+    padding: 20px;
+    border-radius: 8px;
+}
+
+/* The `:global` selector can be used to define global styles that are not scoped */
+:global(.global-class) {
+    color: red;
+    font-weight: bold;
+}