perf(#10923): CSS Modules のクラス名をインライン化する (#10930)

* perf(#10923): unwind css module class name

* perf(#10923): support multiple components

* refactor: clean up

* refactor(#10923): avoid `useCssModule()`

* fix(#10923): allow direct literal class name

* fix(#10923): avoid computed class name

* fix(#10923): allow literal keys

* fix(#10923): typo

* fix(#10923): invalid class names

* chore: test

* revert: test

This reverts commit 5c7ef366ec.

* fix(#10923): hidden tale

* perf(#10923): also unwind scoped css contained components

* perf(#10923): `normalizeClass` AOT compilation

---------

Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

packages/frontend/src/components/page/page.section.vue

@@ -1,6 +1,15 @@
 <template>
 <section>
-	<component :is="'h' + h" :class="h < 5 ? $style['h' + h] : null">{{ block.title }}</component>
+	<component
+		:is="'h' + h"
+		:class="{
+			'h2': h === 2,
+			'h3': h === 3,
+			'h4': h === 4,
+		}"
+	>
+		{{ block.title }}
+	</component>
 
 	<div class="_gaps">
 		<XBlock v-for="child in block.children" :key="child.id" :page="page" :block="child" :h="h + 1"/>