Clarify deletion options for Error Issues (#15143)

We added support for deleting platform issues in
https://github.com/orgs/getsentry/projects/255

Author: armenzg

docs/product/issues/states-triage/index.mdx

@@ -62,6 +62,6 @@ There's also an option to `Delete and Discard Forever`, which will make it so th
 
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-You can only delete [Error Issues](/product/issues/issue-details/error-issues/?original_referrer=https%3A%2F%2Fdocs.sentry.io%2Fproduct%2Fissues%2Fstates-triage%2F). Other issue categories, such as [Performance Issues](/product/issues/issue-details/performance-issues/?original_referrer=https%3A%2F%2Fdocs.sentry.io%2Fproduct%2Fissues%2Fstates-triage%2F), don't support this feature.
+Discard forever only works for [Error Issues](/product/issues/issue-details/error-issues/?original_referrer=https%3A%2F%2Fdocs.sentry.io%2Fproduct%2Fissues%2Fstates-triage%2F). Other issue categories, such as [Performance Issues](/product/issues/issue-details/performance-issues/?original_referrer=https%3A%2F%2Fdocs.sentry.io%2Fproduct%2Fissues%2Fstates-triage%2F) only support normal deletion.
 
 </Alert>