[backport v2.15.1] Update community EOL notification

[rancher-ui-project-bot]

This is a backport issue for #18318, automatically created via GitHub Actions workflow initiated by @richard-cox

Original issue body:

Setup

• Rancher version: v2.15.0 (and before

Describe the bug

• rancher dynamic content can supply EOM and EOL metadata for the version of rancher found when running
• these are then converted into text and used in notifications
  • dynamicContent.upcomingEom
  • dynamicContent.eom
  • dynamicContent.upcomingEol
  • dynamicContent.eol
• we won't use EOM for community, but that shouldn't change any of our code
• we will use EOL for community but it's a slightly different meaning
• this means the text isn't applicable

To Reproduce

• install the extension https://github.com/nwmac/dynamic-content and play around with example json to get the upcomingEOL and eol based notifications

Result

• the content talks about EOL and supported, when neither are really applicable

Expected Result

• if the rancher is community display different messages
• the messages are the same except
  • dynamicContent.upcomingEol
    • title: Replace the End of Life text with No more updates
    • message: Replace with This version of Rancher ({version}) will not receive updates in {days} day(s). Consider upgrading to the latest version when it is released.
  • dynamicContent.eol
    • title: Replace with No more updates
    • message: Replace with This version of Rancher ({version}) will not receive updates. Consider upgrading to the latest version.

Screenshots

Additional context

• growl shows scroll bar Growl always shows a vertical scrollbar #18319