[fix] images with invalid filenames cannot be downloaded
[feat] filename in content disposition header is now preferred for url filename

fixed bug that data is not correctly stored when sync is not available

Add support for conversion of images to Webp format. Firefox 96+ required and 98+ to adjust the quality settings for webp conversion.

Added option to specify filename conflict action

feature avif support

fix "Browser mode for downloads" option
- Addon will not break when "run in private windows" is not allowed while "Always incognito" is selected
- "Same as tab" now functions correctly
- "Always regular" added

Fix quality setting not used in jpg conversion

Updated UI and customization options

Add support for dark mode
Add support for custom download location
Quality percentage can now be seen
Add support to customize addon action
Downloads can be forced to incognito mode download manager
Add support to define default quality values
The save as window popup can be turned off
Quality sliders can now be visible in basic mode

Fixed missing file extension for images that are not converted
Fixed add on not prefering webp for conversion.
Fixed dataurl images not downloading when not converted

Updated image type detection.