Token management: Last accessed timestamp is unclear when token has not been used yet

[mako42]

Minor nitpick, but when a token has not been used yet, it shows the standard unix start date of 1970-1-1 as "last accessed". I can imagine this can be confusing to a user, so showing "never" might be easier to understand.

Expected Behavior

When a token has not been used yet, it should not show a wrong time stamp under last accessed.

Current Behavior

For unused tokens, a wrong (and potentially confusing) date is shown.

Possible Solution

Steps to Reproduce (for bugs)

1. TestQuality TC1163

Context

Your Environment

• Graylog Version: 6.2.0-beta.1-1
• Java Version:
• OpenSearch Version: 2.19.1
• MongoDB Version: 8.0
• Operating System:
• Browser version: firefox snap on ubuntu