(trivial) Make sdk-general.json dashboard title consistent with server-general.json

[clayzermk1]

I noticed that the dashboard title of sdk-general.json is "SDK Metrics", where the dashboard title of sever-general.json is "Temporal Server Metrics". For consistency, would you consider changing the sdk-general.json dashboard title to "Temporal SDK Metrics"?

What was changed

sdk-general.json dashboard title changed from "SDK Metrics" to "Temporal SDK Metrics".

Why?

To be consistent with server-general.json's title. I went looking for the SDK dashboard after deploying it and couldn't find it searching for "temporal".

Checklist

1. How was this tested:

   1. Deploy this commit or modify the Grafana dashboard JSON model under settings if already deployed.
   2. Observe title change.

2. Any docs updates needed? I don't think so.

[CLAassistant]

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