Adding the Loop functionality, along with the Player changes to support
it, and a button to the player controls.
`Player` now has a `loopMode` attribute, which determines whether it
should loop. At the moment, only the following modes are supported:
* `LoopNone`: Disables loop.
* `LoopAll`: Enables loop for the entire playlist queue.
This has been designed as an enum, to support other modes in the future
(e.g. loop for the current track only).
It depends on the `loop` functionality provided by MPV (using the
[`loop-playlist` option](https://mpv.io/manual/master/#options-loop-playlist)),
so no custom logic is needed to reset the currently playing index.
Add in the "meatball menu" of the Album and Playlist pages the option to
download the tracks of the corresponding album or playlist in a zip file.
When download is clicked, a dialog window appears allowing you to choose
the file name and where to save the file.
According to the official
[migration guide](https://github.com/pelletier/go-toml/tree/v2#migrating-from-v1),
there are no breaking changes that could affect this project.
Main differences are:
* `Default struct fields order`: Struct fields stop being alphabetically
sorted, unless their sorting is changed in the struct definitions. Shouldn't be
relevant.
* `No indentation by default`: Also not relevant for newly generated
configuration files. Doesn't break reading existing configuration
files.
This change fixes two `TODO` comments, by scrobbling the currently
playing track if it's removed from the queue, and only run OnSongChange
callbacks when the playing track is affected.
- Adding the option to download the selected track or tracks.
When the download is clicked it opens a dialog that lets you choose where
you want to save the track and the file name (by default
the file name is the track number, the track name and the extension, example "03 - my song.mp3")
If there are many tracks selected it will open one dialog for each track
- Next steps: download an album and a playlist using zip
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