Fix auto download bug

[SleeplessOne1917]

Fixes #2547

[SleeplessOne1917]

I noticed that there's also no way to manually expand embedded videos. I'm wondering how that should be handled since embedded videos only show up when a URL is present, so the thumbnail is already being used for a link to the page.

[dessalines]

The html video I think has a fullscreen button either by default or long-press on most browsers.

We could potentially use something like video.js for either this, or lemmy-ui-leptos, but IMO its just better to use the browser's own player.

[SleeplessOne1917]

I'm not referring to a custom video player.

This is a post that just has a video as its URL:
Screencast_20240617_205159.webm
Notice that you can click on the icon thumbnail to show/hide the video.

Compare that to an embedded video:
Screencast_20240617_205222.webm
There's nowhere to click to show the video. Users who don't have auto-expand media turned on will have to follow the link to the page hosting the video if they want to see it.

[dessalines]

That's a tough one... if we wanted to be consistent, I spose the video as url example, could not expand when auto_expand_media is false, but also open the url directly instead of embedding.

I'll re-open the issue.