add option: the menu is enabled by default for users

templates/settings/admin-form.php

@@ -496,11 +496,29 @@ $choicesSizes = [
     </div>
 
     <div class="section">
+        <div>
+            <label for="side-menu-default-enabled">
+                <?php p($l->t('The menu is enabled by default for users')); ?>
+            </label>
+
+            <p><em><?php p($l->t('Except when the configuration is forced.')); ?></em></p>
+
+            <select id="side-menu-default-enabled" name="default-enabled" class="side-menu-setting">
+                <?php foreach ($choicesYesNo as $label => $value): ?>
+                    <option value="<?php echo $value ?>" <?php if ($value === $_['default-enabled']): ?>selected<?php endif; ?>>
+                        <?php echo $l->t($label);  ?>
+                    </option>
+                <?php endforeach; ?>
+            </select>
+        </div>
+
         <div>
             <label for="side-menu-opener-only">
                 <?php p($l->t('Force this configuration to users')); ?>
             </label>
+        </div>
 
+        <div>
             <select id="side-menu-force" name="force" class="side-menu-setting">
                 <?php foreach ($choicesYesNo as $label => $value): ?>
                     <option value="<?php echo $value ?>" <?php if ($value === $_['force']): ?>selected<?php endif; ?>>