stock_usability: clean-up zero-qty quants when opening quants from stock.location

When accessing stock.move.line from the show reservation on quants, in
the form view of stock.move.line, have a link to the picking

stock_usability/models/__init__.py

@@ -1,6 +1,7 @@
 from . import stock_move
 from . import stock_picking
 from . import stock_picking_type
+from . import stock_location
 from . import stock_location_route
 from . import stock_warehouse_orderpoint
 from . import stock_quant

stock_usability/models/stock_location.py

@@ -0,0 +1,14 @@
+# Copyright 2023 Akretion France (http://www.akretion.com)
+# @author Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class StockLocation(models.Model):
+    _inherit = 'stock.location'
+
+    def action_show_quants(self):
+        self.ensure_one()
+        action = self.env['stock.quant']._get_quants_action(domain=[('location_id', 'child_of', self.id)])
+        return action

stock_usability/models/stock_quant.py

@@ -24,5 +24,5 @@ class StockQuant(models.Model):
             ('package_id', '=', self.package_id.id or False),
             ('result_package_id', '=', self.package_id.id or False),
         ]
-        action['context'] = {'create': 0}
+        action['context'] = {'create': 0, 'stock_move_line_main_view': True}
         return action