[FIX] hr_skills: Display correctly certification/course lines

Purpose
=======

Since https://github.com/odoo/odoo/commit/ee8106bd7aff56aa1897b18e1a967466c6937045


the resume lines generated from the eLearning/Certfication courses are
not rendered properly.

closes odoo/odoo#42478

Taskid: 2149477
Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>

addons/hr_skills/static/src/xml/resume_templates.xml

@@ -2,7 +2,7 @@
 <templates id="template" xml:space="preserve">
 
 <t t-name="hr_resume_data_row">
-    <tr t-attf-class="o_data_row #{is_last? 'o_data_row_last' : ''}" t-att-data-id="id">
+    <tr class="o_data_row" t-attf-class="o_data_row #{is_last? 'o_data_row_last' : ''}" t-att-data-id="id">
         <t t-if="data.display_type === 'classic'">
             <td class="o_resume_timeline_cell position-relative pr-lg-2">
                 <div class="rounded-circle bg-info position-relative"/>

addons/hr_skills/views/hr_views.xml

@@ -49,7 +49,7 @@
                 <group>
                     <group>
                         <field name="line_type_id"/>
-                        <field name="display_type" invisible="1"/>
+                        <field name="display_type" required="1"/>
                     </group>
                     <group>
                         <field name="date_start" required="True"/>

addons/hr_skills_slides/static/src/xml/resume_templates.xml

@@ -4,7 +4,7 @@
 <t t-extend="hr_resume_data_row">
     <t t-jquery="tr.o_data_row" t-operation="append">
         <t t-if="data.display_type === 'course'">
-            <td class="o_data_cell container">
+            <td class="o_data_cell container" colspan="2">
                 <div class="o_resume_line row" t-att-data-id="id">
                     <div class="o_resume_line_dates col-lg-3">
                         <span><t t-esc="data.date_start"/></span>

addons/hr_skills_survey/static/src/xml/resume_templates.xml

@@ -4,7 +4,7 @@
 <t t-extend="hr_resume_data_row">
     <t t-jquery="tr.o_data_row" t-operation="append">
         <t t-if="data.display_type === 'certification'">
-            <td class="o_data_cell container">
+            <td class="o_data_cell container" colspan="2">
                 <div class="o_resume_line row" t-att-data-id="id">
                     <div class="o_resume_line_dates col-lg-3">
                         <span><t t-esc="data.date_start"/></span>