(chore) install babel-core

Author: antoine92190

package.json

@@ -57,6 +57,7 @@
 		"@vue/eslint-config-standard": "^4.0.0",
 		"@vue/eslint-config-typescript": "^5.0.2",
 		"@vue/test-utils": "^1.1.3",
+		"babel-core": "^7.0.0-bridge.0",
 		"babel-eslint": "^10.0.3",
 		"babel-jest": "^23.6.0",
 		"eslint": "^6.7.2",