[FIX] website: create ir.ui.view/website.page in the same record

Somehow, having theses 2 new `website.page` records created separately from
their `ir.ui.view` would throw an error in dev-xml when installing website
module.
A task has been created in website team to track the origin of this bug.

In the meantime, this commit will avoid the traceback by creating the view
inside the page record. As the page's view is not intented to be inherited, it
is the best way to write it anyway.

addons/website/data/website_demo.xml

@@ -17,8 +17,10 @@
 
         <!-- BS Debug Page -->
         <!-- Showcase all (most?) BS components and utilities -->
-        <record id="bs_debug_page_view" model="ir.ui.view">
+        <record id="bs_debug_page" model="website.page">
             <field name="name">BS Debug</field>
+            <field name="url">/demo/bs-debug</field>
+            <field name="website_published">False</field>
             <field name="type">qweb</field>
             <field name="key">website.bs_debug_page_view</field>
             <field name="arch" type="xml">
@@ -274,16 +276,13 @@
                 </t>
             </field>
         </record>
-        <record id="bs_debug_page" model="website.page">
-            <field name="url">/demo/bs-debug</field>
-            <field name="website_published">False</field>
-            <field name="view_id" ref="bs_debug_page_view"/>
-        </record>
 
         <!-- Snippet Debug Page -->
         <!-- Showcase all snippets -->
-        <record id="snippets_debug_page_view" model="ir.ui.view">
+        <record id="snippets_debug_page" model="website.page">
             <field name="name">Snippet Debug</field>
+            <field name="url">/demo/snippets-debug</field>
+            <field name="website_published">False</field>
             <field name="type">qweb</field>
             <field name="key">website.snippets_debug_page_view</field>
             <field name="arch" type="xml">
@@ -314,10 +313,5 @@
                 </t>
             </field>
         </record>
-        <record id="snippets_debug_page" model="website.page">
-            <field name="url">/demo/snippets-debug</field>
-            <field name="website_published">False</field>
-            <field name="view_id" ref="snippets_debug_page_view"/>
-        </record>
     </data>
 </odoo>