[FIX] web: Adjust label#for to match input#id

The #for attribute of the LABEL tag should match the #id of the INPUT
tag, not it's #name.

This regression was introduced in a1716946

closes odoo/odoo#73107

Signed-off-by: Romain Tartière <romain@vittoriaconseil.com>
Signed-off-by: Simon Genin (ges@odoo) <ges@odoo.com>

addons/web/views/database_manager.html

@@ -119,7 +119,7 @@
             </div>
         </div>
         <div class="form-group row">
-            <label for="demo" class="col-md-4 col-form-label">Demo data</label>
+            <label for="load_demo_checkbox" class="col-md-4 col-form-label">Demo data</label>
             <div class="col-md-8">
                 <input type="checkbox" id="load_demo_checkbox" class="form-control-sm" name="demo" value="1">
             </div>