fix table layout

src/client/styles/scss/_page.scss

@@ -68,6 +68,16 @@
         }
       }
 
+      .d2h-files-diff {
+        display: table;
+        table-layout: fixed;
+      }
+
+      .d2h-diff-table {
+        // table-layout: fixed;
+        // border-collapse: collapse;
+      }
+
       .revision-history-diff {
         // max-width: 30%;
         padding-left: 40px;