Introduced a new "TestMode" setting in AppSettings to toggle test mode. Updated multiple pages to display a warning message when "TestMode" is enabled. This ensures users are informed when changes may not be persistent.
Introduced a `StateFilter` parameter to `ProspectFilterControl` to enable filtering by specific prospect states. Updated related pages to utilize the new parameter and adjusted rendering logic to maintain a clean and consistent UI.
Extracted term-related properties from AppSettings to a new TermSettings class for improved organization and separation of concerns. Updated appsettings.json to reflect the new structure.
