Update the now playing info when player is not seeking

[bjtitus]

This was discovered while testing #2141 but is a bit different from the original issue.

The player seekTo completion was updating the now playing info but the else block (updating the episode timestamp directly without the player's involvement) was not.

To test

• Play an episode
• Lock the phone (or navigate to control center) to see the Media Controls
• Pause playback on the lock screen
• Tap the Skip Back button
• Notice that progress is reflected in the progress bar or timestamps

Checklist

• I have considered if this change warrants user-facing release notes and have added them to CHANGELOG.md if necessary.
• I have considered adding unit tests for my changes.
• I have updated (or requested that someone edit) the spreadsheet to reflect any new or changed analytics.

[dangermattic]

	1 Warning
⚠️	PR is not assigned to a milestone.

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[danielebogo]

@bjtitus can we have this targeting our release branch?

[danielebogo]

Thanks @bjtitus

I tested it and the skip back/forward buttons work now when the Effects player is nil and I'm on the lock screen. I also checked the values and they are reflected in both lock screen and in app.

Just 2 things:
Can we update the changelog?
Can we also target release/7.73? So we can start testing it in beta.

[SergioEstevao]

Looking good!