pfSense

Also show system aliases when listing all aliases

Interface group member validation/encoding. Fixes #15778

Fix rule generation and display for system aliases

This is a followup to 52e512c0555d9f5a91732907e524364358d3f70c
- Update system alias comments and descriptions.
- Improve reserved aliases processing.
- Use alias_info_popup() code when possible for system aliases....

Expose system aliases to the GUI. Implement #1979

Refactor system_alias_info_popup()

It now supports any alias name. Additionally check for html characters.

Refactor get_alias_list()

It now uses CSVs for multiple types instead of an array.

Merge pull request #4695 from Self-Hosting-Group/remove-interface

UPnP IGD & PCP: Improve descriptions

Improve error message for duplicated aliases

Adjust widget refresh intervals

Now that the refresh interval works as expected, decrease the refresh
frequency to more closely match the previous behavior.