Fixed various React warnings during the team signup process

web/react/components/team_signup_send_invites_page.jsx

@@ -15,11 +15,6 @@ export default class TeamSignupSendInvitesPage extends React.Component {
         this.state = {
             emailEnabled: global.window.mm_config.SendEmailNotifications === 'true'
         };
-
-        if (!this.state.emailEnabled) {
-            this.props.state.wizard = 'username';
-            this.props.updateParent(this.props.state);
-        }
     }
     submitBack(e) {
         e.preventDefault();

web/react/components/team_signup_url_page.jsx

@@ -54,7 +54,11 @@ export default class TeamSignupUrlPage extends React.Component {
                   if (data) {
                       this.setState({nameError: 'This URL is unavailable. Please try another.'});
                   } else {
-                      this.props.state.wizard = 'send_invites';
+                      if (global.window.mm_config.SendEmailNotifications === 'true') {
+                          this.props.state.wizard = 'send_invites';
+                      } else {
+                          this.props.state.wizard = 'username';
+                      }
                       this.props.state.team.type = 'O';
 
                       this.props.state.team.name = name;

web/react/components/team_signup_welcome_page.jsx

@@ -104,21 +104,19 @@ export default class TeamSignupWelcomePage extends React.Component {
 
         return (
             <div>
-                <p>
-                    <img
-                        className='signup-team-logo'
-                        src='/static/images/logo.png'
-                    />
-                    <h3 className='sub-heading'>Welcome to:</h3>
-                    <h1 className='margin--top-none'>{global.window.mm_config.SiteName}</h1>
-                </p>
+                <img
+                    className='signup-team-logo'
+                    src='/static/images/logo.png'
+                />
+                <h3 className='sub-heading'>Welcome to:</h3>
+                <h1 className='margin--top-none'>{global.window.mm_config.SiteName}</h1>
                 <p className='margin--less'>Let's set up your new team</p>
-                <p>
+                <div>
                     Please confirm your email address:<br />
                     <div className='inner__content'>
                         <div className='block--gray'>{this.props.state.team.email}</div>
                     </div>
-                </p>
+                </div>
                 <p className='margin--extra color--light'>
                     Your account will administer the new team site. <br />
                     You can add other administrators later.