UX: Skip RAW files by default when downloading photos and albums

[lastzero]

As a user with RAW files, I don't want them to be downloaded by default when I click Download All as I only use JPEGs for sharing.

This adds a hidden download.raw = false setting that you can manually set to true in settings.yml until we implement a user interface for it.

Related Code:

• frontend
• backend

Related Issues:

• Config: Add option to skip all RAW images when indexing #2227
• Download: Add UI for album download settings #848
• Download: Choose size in which photo should be downloaded #655
• Download: Select Files and Formats and configure defaults #449

[lastzero]

Started a new preview build for testing:

https://docs.photoprism.app/release-notes/#development-preview

[lastzero]

Last commit extends the DownloadSettings struct with 4 additional options (evaluated in the front- and backend when starting a download or creating a ZIP file):

• Name: File name pattern for downloaded files (was there before)
• Disabled: Disables downloads
• Originals: Only download files stored in the "originals" folder
• MediaRaw: Include RAW image files
• MediaSidecar: Include metadata sidecar files (JSON, XMP, YAML)

You can change these settings in the config/settings.yml file (may require a restart):

Download:
  Name: file
  Disabled: false
  Originals: true
  MediaRaw: false
  MediaSidecar: false

A user interface will be implemented at a later time, as we currently do not have additional resources available. Thanks for your support and patience!