refactor(frontend): use css modules

packages/frontend/src/widgets/WidgetActivity.chart.vue

@@ -1,26 +1,30 @@
 <template>
-<svg :viewBox="`0 0 ${ viewBoxX } ${ viewBoxY }`" @mousedown.prevent="onMousedown">
+<svg :viewBox="`0 0 ${ viewBoxX } ${ viewBoxY }`" :class="$style.root" @mousedown.prevent="onMousedown">
 	<polyline
 		:points="pointsNote"
 		fill="none"
 		stroke-width="1"
-		stroke="#41ddde"/>
+		stroke="#41ddde"
+	/>
 	<polyline
 		:points="pointsReply"
 		fill="none"
 		stroke-width="1"
-		stroke="#f7796c"/>
+		stroke="#f7796c"
+	/>
 	<polyline
 		:points="pointsRenote"
 		fill="none"
 		stroke-width="1"
-		stroke="#a1de41"/>
+		stroke="#a1de41"
+	/>
 	<polyline
 		:points="pointsTotal"
 		fill="none"
 		stroke-width="1"
 		stroke="#555"
-		stroke-dasharray="2 2"/>
+		stroke-dasharray="2 2"
+	/>
 </svg>
 </template>
 
@@ -81,8 +85,8 @@ function render() {
 }
 </script>
 
-<style lang="scss" scoped>
-svg {
+<style lang="scss" module>
+.root {
 	display: block;
 	padding: 16px;
 	width: 100%;

packages/frontend/src/widgets/WidgetAichan.vue

@@ -1,6 +1,6 @@
 <template>
 <MkContainer :naked="widgetProps.transparent" :show-header="false" data-cy-mkw-aichan class="mkw-aichan">
-	<iframe ref="live2d" class="dedjhjmo" src="https://misskey-dev.github.io/mascot-web/?scale=1.5&y=1.1&eyeY=100" @click="touched"></iframe>
+	<iframe ref="live2d" :class="$style.root" src="https://misskey-dev.github.io/mascot-web/?scale=1.5&y=1.1&eyeY=100" @click="touched"></iframe>
 </MkContainer>
 </template>
 
@@ -64,8 +64,8 @@ defineExpose<WidgetComponentExpose>({
 });
 </script>
 
-<style lang="scss" scoped>
-.dedjhjmo {
+<style lang="scss" module>
+.root {
 	width: 100%;
 	height: 350px;
 	border: none;

packages/frontend/src/widgets/WidgetButton.vue

@@ -101,8 +101,3 @@ defineExpose<WidgetComponentExpose>({
 	id: props.widget ? props.widget.id : null,
 });
 </script>
-
-<style lang="scss" scoped>
-.mkw-button {
-}
-</style>