[1.16.5-Forge] Mark mod as client side only, makes server "fml server incompatible" in server list.

[Gbergz]

Versions

• Extreme sound muffler: 3.11_Forge-1.16.5
• Forge: 36.1.18
• Additional mod(s) No mods.

Describe the bug
If mod is missing on server it makes the server ping "Incompatible FML Modded Server".

To Reproduce
Steps to reproduce the behavior:

1. Install mod on client.
2. Don't install on server.
3. Add server to multiplayer list.
4. Ping it.
5. "Incompatible FML Modded Server".
   

Expected behavior
That the modlist is compatible. showing a green checkmark like below:

Additional context
If possible, mark mod as client only.

[Gbergz]

This is an issue again in the latest release from 2 days ago.
https://www.curseforge.com/minecraft/mc-mods/extreme-sound-muffler/files/3345051

[LeoBeliik]

It's marked as clientside if the isClientSide option in the config is set to true.

[Gbergz]

Ah, guess that is new and I missed it noted in a changelog.