fix(caps): remove strophe-caps dependancy

app.js

 import "jquery-ui";
 import "strophe";
 import "strophe-disco";
-import "strophe-caps";
 import "jQuery-Impromptu";
 import "autosize";
 

package.json

     "jQuery-Impromptu": "jQuery-Impromptu/src/jquery-impromptu.js",
     "popover": "./node_modules/bootstrap/js/popover.js",
     "strophe-disco": "./node_modules/strophejs-plugins/disco/strophe.disco.js",
-    "strophe-caps": "./node_modules/strophejs-plugins/caps/strophe.caps.jsonly.js",
     "tooltip": "./node_modules/bootstrap/js/tooltip.js"
   }
 }