[FIX] Migrating required from model to view

While migrating ``fieldservice_repair`` (OCA#1209) some unit tests were failing because this module adds ``required`` condition on two new fields on ``fms.equipment`` model. 
To avoid this, the best solution was to migrate the required to the view as we cannot force the installation order on odoo.

fieldservice_equipment_stock/models/fsm_equipment.py

@@ -7,8 +7,8 @@
 class FSMEquipment(models.Model):
     _inherit = "fsm.equipment"
 
-    product_id = fields.Many2one("product.product", string="Product", required=True)
-    lot_id = fields.Many2one("stock.lot", string="Serial #", required=True)
+    product_id = fields.Many2one("product.product", string="Product")
+    lot_id = fields.Many2one("stock.lot", string="Serial #")
     current_stock_location_id = fields.Many2one(
         "stock.location",
         string="Current Inventory Location",

fieldservice_equipment_stock/static/description/index.html

@@ -8,11 +8,10 @@
 
 /*
 :Author: David Goodger (goodger@python.org)
-:Id: $Id: html4css1.css 9511 2024-01-13 09:50:07Z milde $
+:Id: $Id: html4css1.css 8954 2022-01-20 10:10:25Z milde $
 :Copyright: This stylesheet has been placed in the public domain.
 
 Default cascading style sheet for the HTML output of Docutils.
-Despite the name, some widely supported CSS2 features are used.
 
 See https://docutils.sourceforge.io/docs/howto/html-stylesheets.html for how to
 customize this style sheet.
@@ -275,7 +274,7 @@
   margin-left: 2em ;
   margin-right: 2em }
 
-pre.code .ln { color: gray; } /* line numbers */
+pre.code .ln { color: grey; } /* line numbers */
 pre.code, code { background-color: #eeeeee }
 pre.code .comment, code .comment { color: #5C6576 }
 pre.code .keyword, code .keyword { color: #3B0D06; font-weight: bold }
@@ -301,7 +300,7 @@
 span.pre {
   white-space: pre }
 
-span.problematic, pre.problematic {
+span.problematic {
   color: red }
 
 span.section-subtitle {
@@ -461,9 +460,7 @@ <h2><a class="toc-backref" href="#toc-entry-8">Other credits</a></h2>
 <div class="section" id="maintainers">
 <h2><a class="toc-backref" href="#toc-entry-9">Maintainers</a></h2>
 <p>This module is maintained by the OCA.</p>
-<a class="reference external image-reference" href="https://odoo-community.org">
-<img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" />
-</a>
+<a class="reference external image-reference" href="https://odoo-community.org"><img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" /></a>
 <p>OCA, or the Odoo Community Association, is a nonprofit organization whose
 mission is to support the collaborative development of Odoo features and
 promote its widespread use.</p>

fieldservice_equipment_stock/views/fsm_equipment.xml

@@ -7,11 +7,12 @@
         <field name="arch" type="xml">
             <group id="secondary" position="inside">
                 <group string="Inventory" groups="stock.group_stock_user">
-                    <field name="product_id" />
+                    <field name="product_id" required="1" />
                     <field
                         name="lot_id"
                         domain="[('product_id', '=', product_id)]"
                         context="{'default_product_id': product_id}"
+                        required="1"
                     />
                     <field name="current_stock_location_id" />
                 </group>