Feature: Twilio SMS Channel (#658)

Twilio SMS Channel
Fixes :  #350

app/javascript/shared/mixins/alertMixin.js

@@ -0,0 +1,8 @@
+/* global bus */
+export default {
+  methods: {
+    showAlert(message) {
+      bus.$emit('newToastMessage', message);
+    },
+  },
+};

app/javascript/shared/mixins/configMixin.js

@@ -0,0 +1,7 @@
+export default {
+  computed: {
+    hostURL() {
+      return window.chatwootConfig.hostURL;
+    },
+  },
+};