fix: upgrade axios from 0.18.0 to 0.19.0 (#93)

Snyk has created this PR to upgrade axios from 0.18.0 to 0.19.0.

See this package in NPM:
https://www.npmjs.com/package/axios

See this project in Snyk:
https://app.snyk.io/org/halal-face/project/d782214f-dc97-490e-baa6-e596ca977315?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -5,7 +5,7 @@
   "dependencies": {
     "@material-ui/core": "^3.9.0",
     "@material-ui/icons": "^3.0.2",
-    "axios": "^0.18.0",
+    "axios": "^0.19.0",
     "firebase": "^5.11.1",
     "connected-react-router": "^6.6.1",
     "history": "^4.10.1",