web_renderjs_ui: make login pages use same DOM as dialogs

This way, the padding between fields will be applied and the visual
result would be similar as on all other ERP5JS dialogs

bt5/erp5_web_renderjs_ui/SkinTemplateItem/portal_skins/erp5_web_renderjs_ui/WebSite_viewRecoverAccount.zpt

@@ -27,21 +27,23 @@
         <article>
 
           <section>
-            <form method="post" tal:attributes="action python: context.absolute_url()">
+            <form method="post" tal:attributes="action python: context.absolute_url()" class="field_container">
+              <div>
+                <div>
                   <div class="ui-field-contain">
                     <label i18n:domain="ui" i18n:translate="">Username</label>
                     <div><input autofocus type="text" name="user_login" value="" required=""></div>
                   </div>
-              <br/>
-              <div class="ui-field-contain">
-                <label></label>
-                <div><input type="submit" value="Validate" i18n:attributes="value" i18n:domain="ui" tal:attributes="name python: '%s:method' % (form_action, )"/></div>
+                  <div class="dialog_button_container">
+                    <input type="submit" value="Validate" i18n:attributes="value" i18n:domain="ui" tal:attributes="name python: '%s:method' % (form_action, )"/>
                   </div>
 
                   <input type="hidden" name="url" tal:attributes="value python: context.absolute_url()" />
                   <input tal:condition="exists: request/came_from"
                         type="hidden" name="came_from"
                         tal:attributes="value request/came_from" />
+                </div>
+              </div>
             </form>
            </section>
         </article>

bt5/erp5_web_renderjs_ui/SkinTemplateItem/portal_skins/erp5_web_renderjs_ui/WebSite_viewResetPassword.zpt

@@ -26,7 +26,9 @@
         <article class="ui-content">
 
           <section>
-            <form method="post" tal:attributes="action python: context.absolute_url()">
+            <form method="post" tal:attributes="action python: context.absolute_url()" class="field_container">
+              <div>
+                <div>
                   <div class="ui-field-contain">
                     <label data-i18n="New Password">New Password<span></span></label>
                     <div><input autofocus name="password" type="password" value="" required=""></div>
@@ -35,13 +37,13 @@
                     <label data-i18n="New Password Confirmation">New Password Confirmation<span></span></label>
                     <div><input name="password_confirm" type="password" value="" required=""></div>
                   </div>
-              <div class="ui-field-contain">
-                <label></label>
-                <div><input type="submit" value="Validate" tal:attributes="name python: '%s:method' % (form_action, )"/></div>
+                  <div class="dialog_button_container">
+                    <input type="submit" value="Validate" tal:attributes="name python: '%s:method' % (form_action, )"/>
                   </div>
-
                   <input type="hidden" name="came_from" tal:attributes="value python: context.absolute_url()" />
                   <input type="hidden" name="password_key" tal:attributes="value python: request.get('reset_key') or ''" />
+                </div>
+              </div>
             </form>
            </section>
         </article>

bt5/erp5_web_renderjs_ui/SkinTemplateItem/portal_skins/erp5_web_renderjs_ui/login_form.zpt

@@ -39,8 +39,10 @@
           </section>
 
           <section tal:condition="portal/portal_membership/isAnonymousUser">
-            <form method="post" tal:attributes="action python: '%s/' % absolute_url">
+            <form method="post" tal:attributes="action python: '%s/' % absolute_url" class="field_container">
 
+              <div>
+                <div>
                   <div class="ui-field-contain">
                     <label i18n:domain="ui" i18n:translate="" >Username</label>
                     <div><input autofocus type="text" name="__ac_name" value="" required=""></div>
@@ -49,15 +51,11 @@
                     <label i18n:domain="ui" i18n:translate="" >Password</label>
                     <div><input type="password" name="__ac_password" value="" required="" autocomplete="off" /></div>
                   </div>
-              <div class="ui-field-contain">
-                <label></label>
-                <div>
+                  <div class="dialog_button_container">
+                    <input type="submit" value="Validate" i18n:attributes="value" i18n:domain="ui" tal:attributes="name python: '%s:method' % (form_action, )"/>
                     <a i18n:domain="ui" i18n:translate="" tal:attributes="href python: '%s/WebSite_viewRecoverAccount?came_from=%s' % (absolute_url, absolute_url)">I forgot my password!</a>
                   </div>
-              </div><br/>
-              <div class="ui-field-contain">
-                <label></label>
-                <div><input type="submit" value='Login' i18n:attributes="value" i18n:domain="ui"  tal:attributes="name python: '%s:method' % (form_action, )"/></div>
+                </div>
               </div>