Add option to show and switch between media player sources

[gillesbergerp]

Description

This change allows for showing (and switching between) different media player sources

Motivation and Context

Having media players with multiple different input sources is quite common. See also #967

Types of changes

• 🐛 Bug fix (non-breaking change which fixes an issue)
• [x ] 🚀 New feature (non-breaking change which adds functionality)
• 🌎 Translation (addition or update a translation)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have tested the change locally.
• I followed the steps if I add a new language .