fix: frontend/.snyk & frontend/package.json to reduce vulnerabilities

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

frontend/.snyk

@@ -50,3 +50,53 @@ patch:
         patched: '2020-05-01T11:34:18.550Z'
     - snyk > @snyk/snyk-cocoapods-plugin > @snyk/cocoapods-lockfile-parser > @snyk/dep-graph > graphlib > lodash:
         patched: '2020-05-01T11:34:18.550Z'
+    - html-webpack-plugin > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - webpack-merge > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > graphlib > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > @snyk/dep-graph > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > @snyk/ruby-semver > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > inquirer > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > snyk-config > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > snyk-mvn-plugin > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > snyk-nodejs-lockfile-parser > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > snyk-nuget-plugin > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > @snyk/dep-graph > graphlib > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > snyk-go-plugin > graphlib > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > snyk-nodejs-lockfile-parser > graphlib > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > @snyk/snyk-cocoapods-plugin > @snyk/dep-graph > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > snyk-nodejs-lockfile-parser > snyk-config > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > snyk-mvn-plugin > @snyk/java-call-graph-builder > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > snyk-nuget-plugin > dotnet-deps-parser > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > snyk-php-plugin > @snyk/composer-lockfile-parser > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > @snyk/snyk-cocoapods-plugin > @snyk/dep-graph > graphlib > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > snyk-mvn-plugin > @snyk/java-call-graph-builder > graphlib > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > @snyk/snyk-cocoapods-plugin > @snyk/cocoapods-lockfile-parser > @snyk/dep-graph > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > @snyk/snyk-cocoapods-plugin > @snyk/cocoapods-lockfile-parser > @snyk/ruby-semver > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > snyk-mvn-plugin > @snyk/java-call-graph-builder > snyk-config > lodash:
+        patched: '2020-05-16T18:33:43.925Z'
+    - snyk > @snyk/snyk-cocoapods-plugin > @snyk/cocoapods-lockfile-parser > @snyk/dep-graph > graphlib > lodash:
+        patched: '2020-05-16T18:33:43.925Z'