message: Fix `show-names`
diff: @@ -37,7 +37,9 @@ async function init(): Promise<false | void> {
  for (const usernameEl of usernameElements) {
  const userKey = api.escapeKey(usernameEl.textContent!);
  - if (names[userKey].name) {
  +
  + // For the currently logged in user, `names[userKey]` would not be present.
  + if (names[userKey] && names[userKey].name) {
  // If it's a regular comment author, add it outside <strong>
  // otherwise it's something like "User added some commits"
  const insertionPoint = usernameEl.parentElement!.tagName === 'STRONG' ? usernameEl.parentElement! : usernameEl;
  @@ -45,7 +47,7 @@ async function init(): Promise<false | void> {
  ' (',
  <bdo className="css-truncate">
  <span className="css-truncate-target" style={{maxWidth: '200px'}}>
  - {name}
  + {names[userKey].name}
  </span>
  </bdo>,
  ') '
  