Fix: Send button inside upload-buttons class (#455)

* Fix: Send button inside upload-buttons class - humhub/humhub-internal#774

* Add PR ID to CHANGELOG

Author: marc-farre

docs/CHANGELOG.md

@@ -5,6 +5,7 @@ Changelog
 ---------------------
 - Fix #453: Filter toggle link color
 - Fix: Migration to Bootstrap 5 for templates
+- Fix #455: Send button inside upload-buttons class
 
 3.3.2 (July 27, 2025)
 ---------------------

resources/css/humhub.mail.scss

@@ -259,7 +259,7 @@ $radiusNone: 0;
         border-radius: $radius;
     }
 
-    .upload-buttons {
+    .richtext-create-buttons {
         position: absolute;
         right: 15px;
         bottom: 18px;

views/mail/conversation.php

@@ -57,14 +57,14 @@
             <?php else : ?>
                 <?php $form = ActiveForm::begin(['enableClientValidation' => false, 'acknowledge' => true]) ?>
 
-                <div class="content-create-input-group">
+                <div class="richtext-create-input-group">
 
                     <?= $form->field($replyForm, 'message')->widget(MailRichtextEditor::class, [
                         'id' => 'reply-' . time(),
                         'layout' => AbstractRichTextEditor::LAYOUT_INLINE,
                     ])->label(false) ?>
 
-                    <div class="upload-buttons">
+                    <div class="richtext-create-buttons">
                         <?php $uploadButton = UploadButton::widget([
                             'id' => 'mail-create-upload-' . $message->id,
                             'tooltip' => Yii::t('ContentModule.base', 'Attach Files'),