Remove `row` class.

Causes the register form to overflow the parent bounds in overlay view

dist/converse.js

@@ -94239,7 +94239,7 @@ var _ = {escape:__webpack_require__(/*! ./node_modules/lodash/escape.js */ "./no
 module.exports = function(o) {
 var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
 function print() { __p += __j.call(arguments, '') }
-__p += '<!-- src/templates/register_panel.html -->\n<div class="row">\n    <form id="converse-register" class="converse-form">\n        <legend class="col-form-label">' +
+__p += '<!-- src/templates/register_panel.html -->\n<div>\n    <form id="converse-register" class="converse-form">\n        <legend class="col-form-label">' +
 __e(o.__("Create your account")) +
 '</legend>\n\n        <div class="form-group">\n            <label>' +
 __e(o.__("Please enter the XMPP provider to register with:")) +

src/templates/register_panel.html

-<div class="row">
+<div>
     <form id="converse-register" class="converse-form">
         <legend class="col-form-label">{{{o.__("Create your account")}}}</legend>