MainWP Dashboard 5.3.5

Security Enhancement: Implemented nonce verification in the icon deletion process.
Security Enhancement: Sanitized child site responses in the Test Connection and Add Site processes.
Fixed: Issue where the modal screen did not properly indicate that updates were completed.
Fixed: Several PHP warnings.
Added: Option to hide or show all items in the Site Hardening widget.
Added: HTTP status code display in the Uptime Monitoring widget.
Updated: Adjusted the position of the "Go to WP Admin" icon in the Update modal.
Updated: Irrelevant options in Uptime Monitoring settings are now hidden when the monitor type is set to Ping or Keyword.