Warm up system playlists if they report themselves unavailable on the first request

[Tyrrrz]

Related to #854

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Comments suppressed due to low confidence (2)

YoutubeExplode/Playlists/PlaylistController.cs:108

• [nitpick] The condition 'retriesRemaining >= 5' seems arbitrary. Consider making the retry count configurable or document why this specific number was chosen.

if (index <= 0 && string.IsNullOrWhiteSpace(visitorData) && retriesRemaining >= 5)

YoutubeExplode/Playlists/PlaylistController.cs:106

• [nitpick] The comment could be clearer. Mention that the retry mechanism is specifically for warming up system playlists.

// Some system playlists are unavailable through this endpoint until their page is opened by

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.00%. Comparing base (30ba3f2) to head (a069f6a).
Report is 1 commits behind head on master.

Additional details and impacted files

@@      Coverage Diff      @@
##   master   #855   +/-   ##
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