Make the import modal a flex column with a scrollable step area so the
Back/Import buttons stay visible on short viewports (1080p / 150% zoom)
instead of being cut off at the bottom of the scroll flow.
Also reset step scroll positions via class since 'locationStep' has a
duplicate id in the download modal template.
- Added DownloadManager to handle saving recipes and downloading missing LoRAs.
- Introduced FolderBrowser for selecting LoRA root directories and managing folder navigation.
- Created ImageProcessor for handling image uploads and URL inputs for recipe analysis.
- Developed RecipeDataManager to manage recipe details, including metadata and LoRA information.
- Implemented ImportStepManager to control the flow of the import process and manage UI steps.
- Added utility function for formatting file sizes for better user experience.
