add LoadingIndicator component

src/components/LoadingIndicator.vue

@@ -0,0 +1,91 @@
+<template>
+  <svg class="svg-container" height="20" width="20" viewBox="0 0 20 20">
+    <circle
+      :class="['loader-svg', 'bg', {'animate-bg': animationClass === 'progress' }]"
+      cx="10"
+      cy="10"
+      r="8"
+    />
+    <circle
+      :class="['loader-svg', animationClass ]"
+      :style="{ strokeDasharray: circleProgress }"
+      cx="10"
+      cy="10"
+      r="8"
+    />
+  </svg>
+</template>
+
+<script>
+export default {
+  name: 'loadingIndicator',
+  props: ['progress'],
+  computed: {
+    circleProgress () {
+      const dash = (50.24 * this.progress) / 100
+      const space = 50.24 - dash
+      return `${dash}, ${space}`
+    },
+    animationClass () {
+      return this.progress === undefined ? 'loading' : 'progress'
+    }
+  }
+}
+</script>
+
+<style scoped>
+.loader-svg {
+  position: absolute;
+  left: 0; right: 0; top: 0; bottom: 0;
+  fill: none;
+  stroke-width: 2px;
+  stroke-linecap: round;
+  stroke: var(--color-accent);
+}
+
+.loader-svg.bg {
+  stroke: var(--color-gray-light-3);
+}
+
+.animate-bg{
+  animation: bg-animation 1.5s cubic-bezier(1,1,1,1) 0s infinite;
+}
+
+@keyframes bg-animation{
+  0% {
+    r: 8;
+  }
+  50% {
+    stroke: var(--color-gray-light-2);
+    r: 9;
+  }
+  100% {
+   r: 8;
+  }
+}
+
+.loading {
+  stroke-dasharray: 40.24;
+  animation: fill-animation-loading 1s cubic-bezier(1,1,1,1) 0s infinite;
+}
+
+@keyframes fill-animation-loading {
+  0% {
+    stroke-dasharray: 10 40.24;
+    stroke-dashoffset: 0;
+  }
+  50% {
+    stroke-dasharray: 25.12;
+    stroke-dashoffset: 25.12;
+  }
+  100% {
+    stroke-dasharray: 10 40.24 ;
+    stroke-dashoffset: 50.24;
+  }
+}
+
+.progress {
+  stroke-dashoffset: 12.56;
+  transition: stroke-dasharray 0.2s;
+}
+</style>