ENHANCEMENT: Add spacing between sequential operations for better visibility

Added 2-second delays between site processing operations to:
- Improve visual clarity of sequential operations
- Prevent output from running together
- Make it clearer when each site processing begins/ends
- Improve readability for multi-site operations

Changes in two processing loops:
1. Server-wide disable operation (line ~2209)
2. Server-wide revert/re-enable operation (line ~2695)

Each operation now has spacing that shows:
  Processing: /home/site1/public_html (user: user1)
    Cron: 0,15,30,45 * * * *
  ✓ Converted
  [2 second pause before next site]

  Processing: /home/site2/public_html (user: user2)
    Cron: 0,15,30,45 * * * *
  ✓ Converted

This makes it much clearer which operations are for which sites.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

modules/website/wordpress/wordpress-cron-manager.sh

@@ -2204,6 +2204,12 @@ case "$choice" in
                 echo -e "${GREEN}✓${NC} Converted"
             fi
             echo ""
+
+            # Add spacing between operations to prevent concurrent execution
+            # This ensures sequential processing with clear visual separation
+            if [ "$DRY_RUN" != "true" ]; then
+                sleep 2
+            fi
         done <<< "$wp_configs"
 
         echo ""
@@ -2685,6 +2691,12 @@ case "$choice" in
                 echo -e "${GREEN}✓${NC} Reverted"
             fi
             echo ""
+
+            # Add spacing between operations to prevent concurrent execution
+            # This ensures sequential processing with clear visual separation
+            if [ "$DRY_RUN" != "true" ]; then
+                sleep 2
+            fi
         done <<< "$wp_configs"
 
         # Remove all wp-cron jobs from all users