fix: missing vnc reconnecting label (backport #1257)

[mergify]

Summary

vncConsole.reconnecting.message label is missing

PR Checklist

• Is this a multi-tenancy feature/bug?
  • Yes, the relevant RBAC changes are at:
• Do we need to backport changes to the old Rancher UI, such as RKE1?
  • Yes, the relevant PR is at:
• Are backend engineers aware of UI changes?
  • Yes, the backend owner is:

Related Issue #

[BUG] [UI] Missing vnc reconnecting label #7182

Occurred changes and/or fixed issues

The label is missing from the shell/assets/translations/en-us.yaml in Rancher version 2.9 and lower.
Ref: https://github.com/rancher/dashboard/blob/release-2.9/shell/assets/translations/en-us.yaml#L7757-L7759.
Add translation key to pkg/harvester/l10n/en-us.yaml to fix the issue.

Technical notes summary

Add translation key to pkg/harvester/l10n/en-us.yaml to fix the issue.

Areas or cases that should be tested

1. Go to Rancher
2. Go to Virtualization Management -> Harvester cluster -> Virtual Machines
3. Click on Console button
4. Check the reconnecting label

Areas which could experience regressions

Screenshot/Video

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This is an automatic backport of pull request #1257 done by [Mergify](https://mergify.com).