fix(docs-infra): set `th`/`td` to proper width (#35437)

Previously, the tables on the event page were misaligned. This commit
fixes this by setting the width of all `td`'s and `th`'s.

PR Close #35437

aio/src/styles/2-modules/_table.scss

@@ -113,3 +113,9 @@ table {
     }
   }
 }
+
+.events-container {
+  tr > td, tr > th {
+    width: 33%;
+  }
+}