Client - display page error if can not fetch app config

fittrackee_client/src/components/Common/Loader.vue

@@ -0,0 +1,31 @@
+<template>
+  <div class="loader" />
+</template>
+
+<script lang="ts">
+  import { defineComponent } from 'vue'
+  export default defineComponent({
+    name: 'Loader',
+  })
+</script>
+
+<style scoped lang="scss">
+  @import '~@/scss/base';
+  .loader {
+    animation: spin 2s linear infinite;
+    border: 14px solid var(--app-loading-color);
+    border-top: 14px solid var(--app-loading-top-color);
+    border-radius: 50%;
+    height: 60px;
+    margin-left: 41%;
+    width: 60px;
+  }
+  @keyframes spin {
+    0% {
+      transform: rotate(0deg);
+    }
+    100% {
+      transform: rotate(360deg);
+    }
+  }
+</style>