halved notification check for autostop warning

[stirby]

Hotfix for
coder/coder#11652

https://github.com/coder/customers/issues/400

Halves maximum time to display workspace autostop warning notification.

[kylecarbs]

I think the notif text would still say an hour so you'll have to adjust I think

[stirby]

I was under the impression that the notification text took the time to impendingActionDeadline from the workspace's true deadline not this check?

  updateNotificationLists() {
    this.#workspacesApproachingAutostop = this.#ownedWorkspaces
      .filter(this.filterWorkspacesImpendingAutostop)
      .map((workspace) =>
        this.transformWorkspaceObjects(workspace, this.#workspacesApproachingAutostop, workspace.latest_build.deadline),
      )
      

  transformWorkspaceObjects(workspace: Workspace, workspaceList: NotifiedWorkspace[], deadlineField: string) {
    const wasNotified = workspaceList.find((nw) => nw.workspace.id === workspace.id)?.wasNotified ?? false
    const impendingActionDeadline = formatDistanceToNowStrict(new Date(deadlineField))
    return { workspace, wasNotified, impendingActionDeadline }
  }
  
  notifyImpendingAutostop() {
    this.#workspacesApproachingAutostop?.forEach((notifiedWorkspace: NotifiedWorkspace) => {
      if (notifiedWorkspace.wasNotified) {
        // don't message the user; we've already messaged
        return
      }

      // we display individual notifications for each workspace as VS Code
      // intentionally strips new lines from the message text
      // https://github.com/Microsoft/vscode/issues/48900
      this.vscodeProposed.window.showInformationMessage(
        `${notifiedWorkspace.workspace.name} is scheduled to shut down in ${notifiedWorkspace.impendingActionDeadline}.`,
      )
      notifiedWorkspace.wasNotified = true
    })
  }