ui: Add xiso files to loader menu

Added
Support for downloading media files: audio, video, non encrypted HLS streams from the browser (browser extension needs
to be updated)
Option to customize each item individually in the “Add Multiple Downloads” page (by right-clicking on each item) (
#866)
“Download Page” and “Custom User-Agent” options are now available in the “Add Download” > "Configs" dialog
Ability to remove recently used save locations (#873)

Changed
Browser integration API updated; updating the browser extension is required to support new features

Improved
Updated translations
The download creation time is now set to when the “Add Download” dialog is opened (#846)

Breaking Changes
Make sure to finish any active downloads before updating to this version.
Downloading Video, Audio, or HLS streams requires the updated browser extension. It will become available after the new version is published on the browser’s extension store (v1.3.0).
publishing to the browser's extension store may take some time, especially for Chrome.