feat: add darktable web API interface with gallery, image detail, and settings screens

- Implemented main entry point for React application in `main.jsx`.
- Created `Gallery` component for displaying images with infinite scroll and pull-to-refresh functionality.
- Developed `ImageDetail` component for showing detailed information and actions for selected images.
- Added `Settings` component for configuring API connection settings.
- Integrated Vite for build and development with PWA support.
- Implemented caching strategies for API responses and image previews using Workbox.

contrib/darktable-api/db.lua

@@ -458,6 +458,7 @@ function M.get_module_blob(imgid, operation)
 end
 
 -- Return the single active history entry for one operation.
+function M.get_module(imgid, operation)
   local row = query_one([[
     SELECT h.operation, h.module, h.enabled, h.op_params,
            h.multi_name, h.multi_priority, h.num