chore: fix unit testing, update spinner snapshot

Author: woothu

babel.config.js

@@ -1,7 +1,5 @@
 module.exports = {
   presets: [
-    ['@babel/preset-env', {
-      'modules': false,
-    }]
+    ['@babel/preset-env']
   ]
 }

src/components/Spinner/tests/__snapshots__/CSpinner.spec.js.snap

@@ -1,7 +1,7 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`CSpinner renders correctly 1`] = `
-<span
+<div
   aria-hidden="false"
   aria-label="Loading"
   class="spinner-border"
@@ -10,7 +10,7 @@ exports[`CSpinner renders correctly 1`] = `
 `;
 
 exports[`CSpinner renders correctly 2`] = `
-<span
+<div
   aria-hidden="false"
   aria-label="Loading"
   class="spinner-grow spinner-grow-sm text-success"