Make browserStorage key more readable

dist/converse.js

@@ -62729,7 +62729,7 @@ _converse_core__WEBPACK_IMPORTED_MODULE_2__["default"].plugins.add('converse-cha
 
         const storage = _converse.config.get('storage');
 
-        this.messages.browserStorage = new Backbone.BrowserStorage[storage](`converse.messages${this.get('jid')}${_converse.bare_jid}`);
+        this.messages.browserStorage = new Backbone.BrowserStorage[storage](`converse.messages-${this.get('jid')}-${_converse.bare_jid}`);
         this.messages.chatbox = this;
         this.messages.on('change:upload', message => {
           if (message.get('upload') === _converse.SUCCESS) {

src/headless/converse-chatboxes.js

@@ -294,7 +294,7 @@ converse.plugins.add('converse-chatboxes', {
                 this.messages = new _converse.Messages();
                 const storage = _converse.config.get('storage');
                 this.messages.browserStorage = new Backbone.BrowserStorage[storage](
-                    `converse.messages${this.get('jid')}${_converse.bare_jid}`);
+                    `converse.messages-${this.get('jid')}-${_converse.bare_jid}`);
                 this.messages.chatbox = this;
 
                 this.messages.on('change:upload', (message) => {

src/headless/dist/converse-headless.js

@@ -40572,7 +40572,7 @@ _converse_core__WEBPACK_IMPORTED_MODULE_2__["default"].plugins.add('converse-cha
 
         const storage = _converse.config.get('storage');
 
-        this.messages.browserStorage = new Backbone.BrowserStorage[storage](`converse.messages${this.get('jid')}${_converse.bare_jid}`);
+        this.messages.browserStorage = new Backbone.BrowserStorage[storage](`converse.messages-${this.get('jid')}-${_converse.bare_jid}`);
         this.messages.chatbox = this;
         this.messages.on('change:upload', message => {
           if (message.get('upload') === _converse.SUCCESS) {