fix: client/package.json, client/package-lock.json & client/.snyk to reduce vulnerabilities

The following vulnerabilities are fixed with a Snyk patch:
- https://snyk.io/vuln/SNYK-JS-LODASH-567746

Author: snyk-bot

client/.snyk

@@ -1756,3 +1756,7 @@ patch:
         patched: '2020-10-05T12:41:35.515Z'
     - snyk > snyk-mvn-plugin > @snyk/cli-interface > @snyk/dep-graph > graphlib > lodash:
         patched: '2020-10-05T12:41:35.515Z'
+    - snyk > snyk-python-plugin > snyk-poetry-lockfile-parser > @snyk/dep-graph > graphlib > lodash:
+        patched: '2020-11-30T07:32:18.041Z'
+    - snyk > snyk-python-plugin > snyk-poetry-lockfile-parser > @snyk/cli-interface > @snyk/dep-graph > graphlib > lodash:
+        patched: '2020-11-30T07:32:18.041Z'

client/package-lock.json

@@ -17,7 +17,7 @@
     "react-twitter-login": "^1.2.3",
     "redux": "^4.0.5",
     "redux-thunk": "^2.3.0",
-    "snyk": "^1.425.4"
+    "snyk": "^1.431.2"
   },
   "scripts": {
     "start": "react-scripts start",