Refactor: "error" -> "trace"

Update the wording to make this more clear.

Author: scottbarnes

openlibrary/i18n/messages.pot

@@ -1916,7 +1916,7 @@ msgstr ""
 #: internalerror.html
 #, python-format
 msgid ""
-"The reference code %s and Sentry error ID %s have been created to track "
+"The reference code %s and Sentry trace ID %s have been created to track "
 "this error and we will investigate as we're able."
 msgstr ""
 

openlibrary/templates/internalerror.html

@@ -13,7 +13,7 @@ <h1>$_("A Problem Occurred")</h1>
         $evalue
     </code>
     $if sentry_event_id:
-        <p>$:_("The reference code %s and Sentry error ID %s have been created to track this error and we will investigate as we're able.", name_webpy_error, sentry_event_id)</p>
+        <p>$:_("The reference code %s and Sentry trace ID %s have been created to track this error and we will investigate as we're able.", name_webpy_error, sentry_event_id)</p>
     $else:
         <p>$:_("The reference code %s has been created to track this error and we will investigate as we're able.", name_webpy_error)</p>
     <p>$:_('Return to the <a class="go-back-link" href="javascript:;">previous page</a>?')</p>