Add playlist duration to playlist view

[MarmadileManteater]

Add playlist duration to playlist view

Pull Request Type

• Bugfix
• Feature Implementation
• Documentation
• Other

Related issue

This is based on this PR: #6657
closes #6152

Description

This PR adds the total playlist duration to the playlist-info component which is displayed within the Playlist view.

Screenshots

before	after

Testing

1. Check a creator playlist (ex: https://youtube.com/playlist?list=PL2EEDBEDC9C2BDF07 )
2. Check a user playlist
3. Check a playlist where none of the videos have a duration
   (This can be accomplished by adding only videos from RSS feed subscriptions to a user playlist.)
4. Check a playlist where at least one of the videos do not have a duration
5. Check that the localization of the duration works as expected

Desktop

• OS: Fedora Linux w/ hyprland
• OS Version: 41 (Workstation Edition) x86_64
• FreeTube version: b6ba16f

[efb4f5ff-1298-471a-8973-3d47447115dc]

When one short is inside an user playlist i get this error

User playlist full of shorts throws an error in the console

VirtualBoxVM_V7UIuZ9Psi.mp4

Couldnt find a creator playlist that had shorts without timestamp and normal videos mixed

[MarmadileManteater]

I'm not able to replicate, but it seems there is a video in that playlist with a non-number for lengthSeconds which is also not undefined. I pushed a change which may address the issue.

[efb4f5ff-1298-471a-8973-3d47447115dc]

Errors are gone but when a short is added to a playlist the it wont show total time anymore. To me it seems like a harsh penalty for having shorts without timestamps within the playlist. I totally accept if these are the limitations we cant circumvent though

VirtualBoxVM_PtnY6raIhA.mp4

[MarmadileManteater]

That was the behavior I intended, but it can be changed. My logic is that, if there are any number of videos with no duration in a playlist, the total duration will be wrong.

[efb4f5ff-1298-471a-8973-3d47447115dc]

Sounds logical. One thing i came up with is to call it approximately total time so we can still show it but maybe that is just bad UX

[PikachuEXE]

I feel like putting it to another line would make it "less busy"/easier to read

[MarmadileManteater]

@PikachuEXE
Do you have any opinion on whether we should include playlist duration when there are videos without a length in a playlist? (or if that should be displayed as approximate time)

[PikachuEXE]

Don't show it seems better UX for now
Otherwise got to show how many videos have/have no length which I guess might look weird/confusing to users