Fix text styles on ItemIssueComponent

app/assets/javascripts/cycle_analytics/components/item_issue_component.js.es6

@@ -27,18 +27,18 @@
             {{ issue.title }}
           </a>
         </h5>
-      <a href="issue.url">
+        <a href="issue.url" class="issue-link">
           #{{issue.id}}
         </a>
         <span>
           Opened
-        <a href="issue.url">
+          <a href="issue.url" class="issue-date">
             {{ issue.datetime }}
           </a>
         </span>
         <span>
         by
-      <a href="issue.profile">
+        <a href="issue.profile" class="issue-author-link">
           {{ issue.author }}
         </a>
         </span>

app/assets/stylesheets/pages/cycle_analytics.scss

@@ -328,7 +328,13 @@
       }
     }
 
-    .commit-author-link {
+    .issue-date {
+      color: $gl-text-color;
+    }
+    
+    .issue-link,
+    .commit-author-link,
+    .issue-author-link {
       color: $gl-dark-link-color;
     }