expose device macos version info on /admins/:id route

[jaredh159]

this PR: gertrude-app/swift#97 exposes a bit more data about the device (computer) - the macos version string (e.g. 13.4.6) and the macos version name (e.g. Ventura). i'd like these to be exposed on each installation in the individual admin screen.

i often look this info up in the database when helping a customer, because i send them different videos and use different language in my emails (especially "System Preferences" vs "System Settings") based on what version of macOS they're running. it would save me some time to be able to find this in the analytics site instead.

if you update the interface Installation decl to become:

export interface Installation {
  userId: number;
  appVersion: string; // semver
  filterVersion: string; // semver
  modelIdentifier: string;
  appReleaseChannel: 'stable' | 'beta' | 'canary'
+ osVersionNumber: string?
+ osVersionName: string?
  createdAt: ISODateString;
}

that should capture the new info from the pr linked