fix(feedback): Show soft input keyboard on the Feedback form (#5359)

* fix(feedback): Show soft input keyboard on the Feedback form

* test(feedback): Add test verifying soft keyboard is not blocked by dialog window flags

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* changelog(feedback): Add entry for soft keyboard fix

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* formatting

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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>