[ADD] estate: Add Kanban View for Properties

Introduces a Kanban view to visually represent properties using a custom QWeb-powered layout, offering a more intuitive and engaging alternative to the standard list view.

Key Features:
- Displays property name and key pricing details.
- Shows expected price and tags by default.
- Displays best offer only when offers exist.
- Reveals selling price only when an offer is accepted.
- Groups properties by property type by default.

Author: satp-odoo

estate/views/estate_property_views.xml

@@ -5,7 +5,7 @@
     <record id="action_estate_property" model="ir.actions.act_window">
         <field name="name">Properties</field>
         <field name="res_model">estate.property</field>
-        <field name="view_mode">list,form</field>
+        <field name="view_mode">list,form,kanban</field>
         <field name="context">{'search_default_available': True}</field>
         <field name="help" type="html">
             <p class="o_view_nocontent_smiling_face">
@@ -14,13 +14,48 @@
         </field>
     </record>
 
+    <record id="kanban_view_estate_property" model="ir.ui.view">
+        <field name="name">Estate Properties kanban</field>
+        <field name="model">estate.property</field>
+        <field name="arch" type="xml">
+            <kanban default_group_by="property_type_id" records_draggable="False" group_create="False">
+                <field name="state" />
+                <templates>
+                    <t t-name="kanban-box">
+                        <div>
+                            <div>
+                                <strong>
+                                    <field name="name" />
+                                </strong>
+                            </div>
+
+                            <div>
+                                Expected Price: <field name="expected_price"/>
+                            </div>
+
+                            <div t-if="record.state.raw_value == 'offer_received'">
+                                Best Price: <field name="best_price"/>
+                            </div>
+
+                            <div t-if="record.state.raw_value == 'offer_accepted'">
+                                Selling Price: <field name="selling_price"/>
+                            </div>
+
+                            <div>
+                                <field name="tag_ids" widget="many2many_tags" options="{'color_field' : 'color'}" />
+                            </div>
+                        </div>
+                    </t>
+                </templates>
+            </kanban>
+        </field>
+    </record>
+
     <record id="list_view_estate_property" model="ir.ui.view">
         <field name="name">Estate Properties list</field>
         <field name="model">estate.property</field>
         <field name="arch" type="xml">
-            <list decoration-success="state == 'offer_received' or state == 'offer_accepted'"
-            decoration-danger="state == 'cancelled'"
-            decoration-bf="state == 'offer_accepted'" decoration-muted="state == 'sold'">
+            <list decoration-success="state == 'offer_received' or state == 'offer_accepted'" decoration-danger="state == 'cancelled'" decoration-bf="state == 'offer_accepted'" decoration-muted="state == 'sold'">
                 <field name="name" string="Title" width="20%" />
                 <field name="postcode" string="Postcode" width="20%" />
                 <field name="bedrooms" string="Bedrooms" width="10%" />
@@ -86,7 +121,7 @@
                         <page string="Offer">
                             <field name="offer_ids" readonly="state in ['offer_accepted', 'sold', 'cancelled']" />
                         </page>
-                        
+
                         <page string="Other Info">
                             <group>
                                 <field name="salesman" string="Salesman"/>