Add editVersion translations for asyncButton and catalog

[EzraRT]

Summary

Fixes #16529

Occurred changes and/or fixed issues

Fixed a UI anomaly that occurred when updating the chart application using Chinese. Specifically:

• Fixed a RangeError crash when attempting to downgrade an application in the zh-hans locale.
• Added missing translation for the "managed application" warning banner.

Technical notes summary

The catalog.install.steps.basics.description key uses ICU Message Format's {action, select, ...} syntax. The zh-hans translation was missing the downgrade and editVersion options. When the UI attempted to render this string with action="downgrade", the formatter threw a RangeError because the case was unhandled.

Changes:

• Added downgrade and editVersion to catalog.install.steps.basics.description in shell/assets/translations/zh-hans.yaml.
• Added the missing catalog.install.warning.managed key to shell/assets/translations/zh-hans.yaml.

Areas or cases that should be tested

1. Set the user preference Language to Chinese (Simplified).
2. Navigate to Apps(应用) > Installed Apps(已安装的应用).
3. Select an existing app and click Edit / Change Version.
4. Select a version older than the current one to trigger the "downgrade" state.
5. Verify that the page renders correctly without crashing.

Areas which could experience regressions

None expected. Changes are isolated to the zh-hans translation file and strictly add missing keys/options.

Screenshot/Video

Checklist

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[momesgin]

@EzraRT thanks for creating the issue and PR for this, I've found a couple of more missing translation key cases where we have the same type of select format.