MainWP Dashboard 6.0-er.13

Added: Cost import functionality for easier cost entry management
Added: "Jump to WP Admin" quick link in site dropdown menu
Added monitoring data retention settings with configurable duration options (30, 90, 180, 365 days, or keep forever)
Updated: Reorganized site management forms with collapsible accordion sections
Updated: Enhanced empty-state placeholders across widgets with clearer messaging
Updated: Improved site connection verification flow with better guidance
Updated: Refined authentication setup options with clearer descriptions
Updated: Updated backup settings layout for better organization
Updated: Improved cost tracker terminology (Operational Costs)
Updated: Better table layouts with improved column organization
Updated: Optimized cURL handle management to reduce unnecessary handle recreation and improve resource efficiency during multi-request operations.