Bump lodash from 4.17.13 to 4.17.21

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.13 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.13...4.17.21)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package-lock.json

@@ -9,7 +9,7 @@
     "font-awesome": "^4.7.0",
     "html-webpack-plugin": "^3.2.0",
     "jquery": "3.4.1",
-    "lodash": "^4.17.10",
+    "lodash": "^4.17.21",
     "lz-string": "^1.4.4",
     "react": "^16.4.2",
     "react-codemirror": "^1.0.0",

package.json

@@ -3207,20 +3207,10 @@ lodash.isequal@^4.5.0:
   resolved "https://registry.npmjs.org/lodash.isequal/-/lodash.isequal-4.5.0.tgz"
   integrity sha1-QVxEePK8wwEgwizhDtMib30+GOA=
 
-lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.3, lodash@^4.17.5:
-  version "4.17.13"
-  resolved "https://registry.npmjs.org/lodash/-/lodash-4.17.13.tgz"
-  integrity sha512-vm3/XWXfWtRua0FkUyEHBZy8kCPjErNBT9fJx8Zvs+U6zjqPbTUOpkaoum3O5uiA8sm+yNMHXfYkTUHFoMxFNA==
-
-lodash@^4.17.14:
-  version "4.17.20"
-  resolved "https://registry.npmjs.org/lodash/-/lodash-4.17.20.tgz"
-  integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
-
-lodash@^4.17.15:
-  version "4.17.15"
-  resolved "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz"
-  integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
+lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.21, lodash@^4.17.3, lodash@^4.17.5:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 log-symbols@^2.1.0:
   version "2.2.0"