Motivation and Context

Resolves #225

Description

SRF developer team found a workaround to keep the player alive enough when the background code ask to play a next convent in background.

Xcode Organizer view can help us to follow battery usage in next iterations.

Checklist

• The branch has been rebased onto the develop branch.
• The code followed the code style:
  • swiftlint has run to ensure the Swift code style is valid.
  • rubocop -a has run to ensure the Ruby code style is valid.
• Remote configuration properties have been properly documented (if relevant).
• The documentation has been updated (if relevant).
• Issues are linked to the PR, if any.