Hash message links so messages with different links aren't considered the same for deduplication

[SitiSchu]

Plugins like Deathrecap post a message to the chat linking to a specific point in time. Since the deduplication only shows the first message this leads to the link opening an older death when clicked.

With this change message that link to different things are considered as seperate messages and don't get deduplicated. Before:

After:

If it should be a toggle instead of being enabled by default I could look into adding that. I'm also not super familiar with C# so if theres a better way to handle this, feel free to tell me :)

[Infiziert90]

Please make it a toggle option. You can place it under the original de-duplicate option in the settings.

[SitiSchu]

I've added the toggle