fix: use LinkIcon for linked issues

Author: codebytere

src/renderer/components/metrics/MetricGroup.tsx

@@ -2,7 +2,7 @@ import { type FC, useContext } from 'react';
 
 import {
   CommentIcon,
-  IssueClosedIcon,
+  LinkIcon,
   MilestoneIcon,
   TagIcon,
 } from '@primer/octicons-react';
@@ -41,7 +41,7 @@ export const MetricGroup: FC<IMetricGroup> = ({
         {notification.subject?.linkedIssues?.length > 0 && (
           <MetricPill
             color={IconColor.GREEN}
-            icon={IssueClosedIcon}
+            icon={LinkIcon}
             metric={notification.subject.linkedIssues.length}
             title={linkedIssuesPillDescription}
           />