Add new plugin entry for streamcontroller-steam

[MiguelAngelLV]

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[Core447]

Hey,

sorry that it took me so long to get to this. Great work!
What I noticed:

• This unfortunately doesn't work inside the flatpak. Here's how the os plugin solves this by using flatpak-spawn
• Unfortunately, the app id doesn't support dots, please replace them with underscores. The format should be com_example_app

You can test if your plugins installs and works correctly in the Flatpak by installing StreamController via Flatpak and then adding your repo as a custom plugin in the settings:

Thanks for your work and looking forward to having your plugin in the store!

[Core447]

@MiguelAngelLV just ping me if you have any questions or ready for the merge

[MiguelAngelLV]

Sorry, I need a little of free time for fixs the problem

[Core447]

No problem

[MiguelAngelLV]

Updated