feat(project_phase_estimate): add archive and planned filters to project estimate search view

- Add "Archived" filter to show inactive records with domain [('active', '=', False)]
- Add "Planned" filter to show records with planned_hours > 0.0
- Maintain existing group by functionality while enhancing search capabilities
- Improve user experience by enabling quick filtering of relevant estimate records

Author: janikvonrotz

project_phase_estimate/views/project_estimate_views.xml

@@ -45,6 +45,18 @@
             <search string="Search Project Estimate">
                 <field name="project_id" string="Project" />
                 <field name="phase_id" string="Task Phase" />
+                <separator />
+                <filter
+                    string="Archived"
+                    name="inactive"
+                    domain="[('active', '=', False)]"
+                />
+                <filter
+                    string="Planned"
+                    name="planned"
+                    domain="[('planned_hours', '>', 0.0)]"
+                />
+
                 <group expand="0" string="Group By">
                     <filter
                         string="Project"