[FIX] base: hide File Content label for attachment type URL

Purpose:
- The label `File Content (base64)` is still visible even if the attachment type
  is URL.

Specifications:
- Hide label `File Content (base64)` when attachment type is URL.

task-4778138

closes odoo#209743

X-original-commit: 36929c1
Signed-off-by: Raphael Collet <[email protected]>

Author: sami-odoo

odoo/addons/base/views/ir_attachment_views.xml

@@ -13,7 +13,7 @@
                     <group>
                         <group class="w-100">
                             <field name="type"/>
-                            <label for="datas" class="mt-1"/>
+                            <label for="datas" class="mt-1" invisible="type == 'url'"/>
                             <field name="datas" nolabel="1" class="w-100" filename="name" invisible="type == 'url'"/>
                             <field name="url" widget="url" invisible="type == 'binary'"/>
                             <field name="mimetype" groups="base.group_no_one"/>