update JS dependencies

.travis.yml

@@ -1,5 +1,5 @@
 language: node_js
-node_js: '11'
+node_js: '12'
 
 dist: trusty
 sudo: required

package.json

@@ -5,22 +5,22 @@
   "dependencies": {
     "@mapbox/togeojson": "^0.16.0",
     "connected-react-router": "^6.5.2",
-    "date-fns": "^2.1.0",
-    "history": "^4.9.0",
-    "i18next": "^17.0.13",
+    "date-fns": "^2.2.1",
+    "history": "^4.10.1",
+    "i18next": "^17.0.16",
     "i18next-browser-languagedetector": "^3.0.3",
     "i18next-xhr-backend": "^3.1.2",
     "leaflet": "^1.5.1",
-    "luxon": "^1.17.2",
+    "luxon": "^1.19.2",
     "object-hash": "^1.3.1",
     "react": "^16.9.0",
     "react-dom": "^16.9.0",
     "react-helmet": "^6.0.0-beta",
-    "react-i18next": "^10.12.2",
+    "react-i18next": "^10.12.5",
     "react-leaflet": "^2.4.0",
     "react-redux": "^7.1.1",
     "react-router-dom": "^5.0.1",
-    "react-scripts": "^3.1.1",
+    "react-scripts": "^3.1.2",
     "react-timezone": "^2.4.0",
     "recharts": "^1.7.1",
     "redux": "^4.0.4",
@@ -44,8 +44,8 @@
     "not op_mini all"
   ],
   "devDependencies": {
-    "eslint-config-prettier": "^6.2.0",
-    "eslint-plugin-prettier": "^3.1.0",
+    "eslint-config-prettier": "^6.3.0",
+    "eslint-plugin-prettier": "^3.1.1",
     "eslint-plugin-testcafe": "^0.2.1",
     "prettier": "^1.18.2",
     "randomstring": "^1.1.5",