Refactor keyword handling: Replace 'intent' with 'country' across backend and frontend

- Updated AutomationService to include estimated_word_count.
- Increased stage_1_batch_size from 20 to 50 in AutomationViewSet.
- Changed Keywords model to replace 'intent' property with 'country'.
- Adjusted ClusteringService to allow a maximum of 50 keywords for clustering.
- Modified admin and management commands to remove 'intent' and use 'country' instead.
- Updated serializers to reflect the change from 'intent' to 'country'.
- Adjusted views and filters to use 'country' instead of 'intent'.
- Updated frontend forms, filters, and pages to replace 'intent' with 'country'.
- Added migration to remove 'intent' field and add 'country' field to SeedKeyword model.

backend/igny8_core/modules/planner/admin.py

@@ -18,7 +18,7 @@ class KeywordsResource(resources.ModelResource):
     class Meta:
         model = Keywords
         fields = ('id', 'keyword', 'seed_keyword__keyword', 'site__name', 'sector__name', 
-                  'cluster__name', 'volume', 'difficulty', 'intent', 'status', 'created_at')
+                  'cluster__name', 'volume', 'difficulty', 'country', 'status', 'created_at')
         export_order = fields
 
 
@@ -55,11 +55,11 @@ class ClustersAdmin(SiteSectorAdminMixin, Igny8ModelAdmin):
 @admin.register(Keywords)
 class KeywordsAdmin(ExportMixin, SiteSectorAdminMixin, Igny8ModelAdmin):
     resource_class = KeywordsResource
-    list_display = ['keyword', 'seed_keyword', 'site', 'sector', 'cluster', 'volume', 'difficulty', 'intent', 'status', 'created_at']
+    list_display = ['keyword', 'seed_keyword', 'site', 'sector', 'cluster', 'volume', 'difficulty', 'country', 'status', 'created_at']
     list_editable = ['status']  # Enable inline editing for status
     list_filter = [
         ('status', ChoicesDropdownFilter),
-        ('intent', ChoicesDropdownFilter),
+        ('country', ChoicesDropdownFilter),
         ('site', RelatedDropdownFilter),
         ('sector', RelatedDropdownFilter),
         ('cluster', RelatedDropdownFilter),