fix(xo-server/rest-api): remove alarms information in the dashboard endpoint

[MathieuRA]

Description

⚠️ alarms info is removed from the dashboard endpoint! ⚠️
Alarms are now in a dedicated endpoint /alarms

// /alarms
string[]

// /alarms/<uuid>
{
   body: {
      value: string, // NaN, Infinity and -Infinity aren't valid JSON
      name: string
   },
   name: 'ALARM',
   time: number,
   $object: string,
   id: string,
   type: 'message',
   uuid: string,
   $pool: string,
   $poolId: string,
   _xapiRef: string,
   object: {
      type: string,
      uuid: string,
      href: string | undefined
   },
}

Checklist

• Commit
  • Title follows commit conventions
  • Reference the relevant issue (Fixes #007, See xoa-support#42, See https://...)
  • If bug fix, add Introduced by
• Changelog
  • If visible by XOA users, add changelog entry
  • Update "Packages to release" in CHANGELOG.unreleased.md
• PR
  • If UI changes, add screenshots
  • If not finished or not tested, open as Draft