Persist dismissing the OTLP unsecured message bar

[JamesNK]

Description

Running the dashboard without OTLP auth will display a warning message bar. The message bar can be dismissed, but it reappears if the browser is refreshed.

It is annoying to repeatedly show the message to a user who has already seen the warning. They either have to close the message every time, or accept it is always visible.

This PR:

• Persists a flag to local storage when the message bar is dismissed
• Doesn't display message bar if previously dismissed
• Centralizes browser storage keys
• Adds tests

Note that the warning displayed in console logs on startup isn't impacted. It's always displayed.

Checklist

• Is this feature complete?
  • Yes. Ready to ship.
  • No. Follow-up changes expected.
• Are you including unit tests for the changes and scenario tests if relevant?
  • Yes
  • No
• Did you add public API?
  • Yes
    • If yes, did you have an API Review for it?
      • Yes
      • No
    • Did you add <remarks /> and <code /> elements on your triple slash comments?
      • Yes
      • No
  • No
• Does the change make any security assumptions or guarantees?
  • Yes
    • If yes, have you done a threat model and had a security review?
      • Yes
      • No
  • No
• Does the change require an update in our Aspire docs?
  • Yes
    • Link to aspire-docs issue:
  • No

[JamesNK]

Only include AuthorizeView on the page if the user profile should be displayed (which means the auth mode needs to be a certain value).

This avoids the need to include various authz services in tests.

[JamesNK]

/azp run

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[JamesNK]

/azp run

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[JamesNK]

/azp run

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