fix: right-align the date column in the commit graph

Author: the0807

webview-ui/src/components/graph/CommitGraph.svelte

@@ -1475,6 +1475,7 @@
     padding: 0 10px;
     color: var(--text-secondary);
     white-space: nowrap;
+    text-align: right;
   }
 
   .col-hash {