Update Toast UI to ^2.3.1

package.json

@@ -48,8 +48,8 @@
     "@rails/actioncable": "^6.0.3-1",
     "@sentry/browser": "^5.10.2",
     "@sourcegraph/code-host-integration": "0.0.49",
-    "@toast-ui/editor": "^2.3.0",
-    "@toast-ui/vue-editor": "^2.3.0",
+    "@toast-ui/editor": "^2.3.1",
+    "@toast-ui/vue-editor": "^2.3.1",
     "apollo-cache-inmemory": "^1.6.6",
     "apollo-client": "^2.6.10",
     "apollo-link": "^1.2.14",

yarn.lock

@@ -1162,20 +1162,20 @@
     dom-accessibility-api "^0.4.5"
     pretty-format "^25.5.0"
 
-"@toast-ui/editor@^2.3.0":
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/@toast-ui/editor/-/editor-2.3.0.tgz#47a0bb4f7cec8248dda64cbbd2edf63294debcd8"
-  integrity sha512-rCb35CMxYS6U2aiwWhdLZMzbgzoVHm2YxGrlmH4OdNQNfzAM03DHl4lTwq7EP7E4MG0FEMgMyn0Ovo5DI7G8+w==
+"@toast-ui/editor@^2.3.1":
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/@toast-ui/editor/-/editor-2.3.1.tgz#add692840011efcdbd9b4b6de93dda2da12c36a0"
+  integrity sha512-0akQUnyCg24SBBb+weRX6VJ6ZjltxYEivBWOHft0birkrPF0YQgKjebPtFGPB9THBSUY+0qyr6k/KIN2rZqUog==
   dependencies:
     "@types/codemirror" "0.0.71"
     codemirror "^5.48.4"
 
-"@toast-ui/vue-editor@^2.3.0":
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/@toast-ui/vue-editor/-/vue-editor-2.3.0.tgz#8b80896f1132ca229ab28167c78f607d06e4d3ef"
-  integrity sha512-oXuy4YqaF9RHBqYutNg8xI9XvcrWQv9xRKQJLSPtR3wh9/5AeTuXm/b8qkJdoccCsJl5lUq/Qh7l/+o8zcbvFA==
+"@toast-ui/vue-editor@^2.3.1":
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/@toast-ui/vue-editor/-/vue-editor-2.3.1.tgz#ca8771a77513d1998123db717626a2ec4267b6f5"
+  integrity sha512-vEElTwJ3CwUL2da2y3gxKVK7bRWC+d6SrUyOQNeCDtN95vEs/7MUNK4cUAxAGDZuDYg1KB2ZpBtc/dV1LkO9XQ==
   dependencies:
-    "@toast-ui/editor" "^2.3.0"
+    "@toast-ui/editor" "^2.3.1"
 
 "@types/babel__core@^7.1.0":
   version "7.1.2"