PLT-7 Adding react-intl libs

web/static/i18n/en.json

@@ -0,0 +1,4 @@
+{
+  "about.close": "Close",
+  "about.date": "Build Date:"
+}

web/static/i18n/es.json

@@ -0,0 +1,4 @@
+{
+  "about.close": "Close",
+  "about.date": "Build Date:"
+}