[FIX] mrp_subcontracting: fix traceback in bom overview

Steps to reproduce the bug:
- Enable subcontracting in mrp settings
- Create a storable product:
    - add “azure interior “ as supplier
    - Create a BoM:
        - Type: subcontracting
        - subcontractor: azure interior
        - save
- Click on BoM overview

Problem:
Traceback is triggered: “OwlError: Invalid props for component
'BomOverviewSpecialLine': 'precision' is missing (should be a number)”

opw-3321346

closes odoo/odoo#123435

X-original-commit: 60eca5439e72786bb0e913d7ac643697376205c9
Signed-off-by: William Henrotin (whe) <whe@odoo.com>
Signed-off-by: Djamel Touati (otd) <otd@odoo.com>

addons/mrp_subcontracting/static/src/components/bom_overview_components_block/mrp_bom_overview_components_block.xml

@@ -7,7 +7,9 @@
                 <BomOverviewSpecialLine
                     type="'subcontracting'"
                     showOptions="props.showOptions"
-                    data="props.data"/>
+                    data="props.data"
+                    precision="props.precision"
+                    />
             </t>
         </xpath>
     </t>

addons/mrp_subcontracting/static/src/components/bom_overview_special_line/mrp_bom_overview_special_line.xml

@@ -7,7 +7,7 @@
         </xpath>
 
         <xpath expr="//td[@name='quantity']" position="inside">
-            <span t-if="props.type == 'subcontracting'" t-esc="formatFloat(subcontracting.quantity)"/>
+            <span t-if="props.type == 'subcontracting'" t-esc="formatFloat(subcontracting.quantity, {'digits': [false, precision]})"/>
         </xpath>
 
         <xpath expr="//td[@name='uom']" position="inside">