🎨 style(exportModal.tsx, flowSettingsModal.tsx): refactor name and description input fields into a reusable component

✨ feat(nameInputComponent.tsx): add character limit to name input field
The name and description input fields in the ExportModal and FlowSettingsModal components have been refactored into a reusable component called EditFlowSettings. This improves code reusability and reduces code duplication. The EditFlowSettings component also includes a character limit of 50 characters for the name input field to prevent users from entering names that are too long.