- Updated `TargetSample` class to include `TotalRows` property.
- Set `TotalRows` in `TargetRepository` based on database query.
- Added state management for `targetSample` and loading in `MailingEdit.tsx`.
- Modified rendering logic in `MailingEdit.tsx` to display total rows.
- Updated `TargetSampleModal` to accept `targetSample` as a prop.
- Created new `targetSample.ts` file defining the `TargetSample` interface.
David Headrick
712dbb5046