Add converse-chatboxviews as dependency

dist/converse.js

@@ -52113,7 +52113,7 @@ const _converse$env = _converse_headless_converse_core__WEBPACK_IMPORTED_MODULE_
       _ = _converse$env._,
       moment = _converse$env.moment;
 _converse_headless_converse_core__WEBPACK_IMPORTED_MODULE_0__["default"].plugins.add('converse-message-view', {
-  dependencies: ["converse-modal"],
+  dependencies: ["converse-modal", "converse-chatboxviews"],
 
   initialize() {
     /* The initialize function gets called as soon as the plugin is

src/converse-message-view.js

@@ -20,7 +20,7 @@ const { Backbone, _, moment } = converse.env;
 
 converse.plugins.add('converse-message-view', {
 
-    dependencies: ["converse-modal"],
+    dependencies: ["converse-modal", "converse-chatboxviews"],
 
     initialize () {
         /* The initialize function gets called as soon as the plugin is