Add new components for login and comment functionality

components/kl-svg-icon/index.vue

@@ -0,0 +1,28 @@
+<template>
+  <svg aria-hidden="true" class="svg-icon">
+    <use :xlink:href="symbolId" :fill="color" />
+  </svg>
+</template>
+
+<script setup lang="ts">
+  import { computed } from 'vue'
+
+  const props = defineProps({
+    prefix: { type: String, default: 'icon' },
+    iconClass: { type: String, required: true },
+    color: { type: String, default: '' },
+  })
+
+  const symbolId = computed(() => `#${props.prefix}-${props.iconClass}`)
+</script>
+
+<style scoped>
+  .svg-icon {
+    width: 1em;
+    height: 1em;
+    vertical-align: -0.15em;
+    overflow: hidden;
+    fill: currentColor;
+    outline: none;
+  }
+</style>