- Added a new `handleSaveAndClose` function to allow users to save and navigate back to the exercise list.
- Updated `performSaveAttempt` to accept a `closeAfter` parameter for conditional navigation.
- Refactored form submission handling to include separate actions for saving and saving with closure.
- Integrated `PageFormEditorChrome` for improved layout and user experience, including a back navigation option.
- Updated the `list_exercises` function to include counts for exercise variants and media, improving data retrieval for exercise details.
- Added new CSS styles for the exercise card footer to display variant and media statistics in a visually appealing manner.
- Implemented `ExerciseCardContentStats` component to conditionally render variant and media counts, enhancing the user interface of exercise cards.
